Basic Principles of Electricity and Electrical Stimulating Currents Practice Test

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• Which of the following are considered good conductors in the human body?
• What happens to the types of nerves as amplitude increases?
• How is the total voltage across a series circuit calculated?
• What is a capacitor?
• What is the nerve response to electrical charge?
• In electrical circuits, what does resistance measure?
• During which phase does no relaxation of the tissue occur?
• How do you calculate total resistance in a parallel circuit?
• What does the term “grounding” refer to in electrical systems?
• How is electrical power calculated?
• What is the primary risk associated with electrical stimulation?
• What is alternating current (AC)?
• What is neuromuscular electrical stimulation (NMES)?
• Which individual should avoid using electrical stimulation devices?
• Which type of electrical stimulation is often used for pain management?
• What does pulse duration affect in electrical stimulation therapy?
• What is the primary function of a resistor in an electrical circuit?
• What is necessary for electric current to flow?
• What does duty cycle refer to in electrical stimulation?
• What does a circuit breaker do?
• What is a critical factor when choosing the ramp time for a treatment?
• How does electrical current flow in a circuit?
• Which component is used to store electrical charge?
• What is the preferred electrode placement for maximizing the effectiveness of electrical stimulation?
• What is the relationship between voltage, current, and resistance defined by Ohm's Law?
• What is an electrical stimulus?
• What instrument measures electrical current?
• What is the purpose of a grounding wire in electrical devices?
• In electrical terminology, what does the term 'voltage' refer to?
• In electrical safety, what does the term 'grounding' refer to?
• What is capacitance in the context of electricity?
• What happens to the total resistance in a series circuit?
• What is a characteristic of carbon-impregnated silicone rubber electrodes?
• What is alternating current (AC)?
• What is an advantage of using modulation during electrical stimulation?
• What are the two types of electrical circuits?
• Which nerves are depolarized second and are responsible for contracting muscles?
• How is electric current defined in terms of charge and time?
• What is the effect of using a low electrode impedance?
• Short duration waveforms are particularly effective at depolarizing which type of nerves?
• How does electrical stimulation affect nerve tissue?
• What happens to the amount of electricity added to the body as the depth increases?
• What is the primary characteristic of a series circuit?
• What is the effect on electrical sensation during therapeutic applications?
• How does electrical stimulation aid in pain management?
• What is the frequency of standard AC power in the United States?
• What is a common application of electrical stimulating currents in medicine?
• What is the role of electrodes in electrical stimulation?
• What is the formula for calculating power in an electrical circuit?
• What is the difference between monophasic and biphasic waveforms?
• What is a common example of an electrical insulator?
• What is one of the benefits of using a GFCI in electrical systems?
• What is the main function of a rectifier in electrical systems?
• Which of the following is a common use of electrical stimulation in therapy?
• What does peak amplitude indicate in terms of electrical stimulation?
• What effect does temperature generally have on resistance in conductors?
• Which characteristic is true regarding water electrodes?
• Which type of current flows in one direction only?
• What is resistance?
• What is the effect of electrical stimulation on muscle atrophy?
• Which type of current is typically used in household electrical systems?
• What materials are identified as good insulators in the body?
• What is electrical power measured in?
• What is the purpose of an electrical fuse?
• What does a waveform describe in electrical currents?
• What is one method used to assess the efficacy of electrical stimulation therapy?
• What is the purpose of using a ramp function in electrical stimulation?
• What is the primary use of a capacitor in electrical circuits?
• What defines a bipolar arrangement of electrodes?
• What defines direct current (DC)?
• What would you expect from a common conductor in an electrical system?
• Why is it important to consider the direction of current flow in electrical stimulation?
• What effect does using a higher duty cycle have during electrical stimulation?
• In pulsed current therapy, what is the role of the machine?
• What is an important consideration when choosing electrode types for electrical stimulation?
• How many types of currents are there?
• What are the three main characteristics of the polar effect?
• What role does impedance play in electrical stimulation?
• How often should a practitioner assess the skin under the electrodes during treatment?
• What is often necessary to account for when using electrical stimulation for rehabilitation?
• What happens to current in a parallel circuit when one branch is removed?
• In electrical stimulation therapy, what can be done to minimize discomfort?
• In what scenarios might electrical stimulation be contraindicated?
• Which device is used to measure electrical current in a circuit?
• What is the effect of increasing the frequency of electrical stimulation on muscle contraction?
• What is the term for the distance from one peak to the next peak in a waveform?
• Which of the following is a potential benefit of therapeutic electrical stimulation?
• What is a common use of a diode in electronic circuits?
• What is a high frequency tetanic contraction best described as?
• Why is a slow ramp time beneficial when stimulating a spastic muscle?
• In electrical therapy, what does "pulse duration" affect?
• What are the main effects of electrical stimulation on tissues?
• What term describes the flow of electric charge?
• What distinguishes therapeutic electrical stimulation from diagnostic electrical stimulation?
• Which factor influences the created pH change of tissue during electrical stimulation?
• What type of current does a rectifier convert?
• What is the basic unit of electric charge?
• How do you calculate total capacitance in a series circuit?
• What is a ground fault circuit interrupter (GFCI)?
• What instrument measures voltage?
• What happens when a circuit experiences overload?
• Which formula represents Ohm's Law?
• What is the effect of increasing pulse frequency in electrical stimulation?
• What is electricity defined as?
• Which statement accurately describes farther spacing of electrodes?
• Which of the following is an example of direct current (DC)?
• What type of electrical signal is often used in therapeutic applications?
• What does a voltmeter measure?
• Which nerves are depolarized last and signal pain?
• Which unit is used to measure capacitance?
• What role do conductors play in an electrical circuit?
• What characterizes a low frequency muscle twitch?
• What is the term for the energy loss due to heat in electrical circuits?
• What health condition might benefit from functional electrical stimulation (FES)?
• What common device uses electrical stimulation for pain management?
• What does the term "duty cycle" refer to in electrical stimulation?
• What is phase duration in the context of electrical waveforms?
• Which of the following statements is true about conductivity in the body?
• What role do conductors play in electrical circuits?
• What is the effect of increasing resistance on current flow, assuming voltage is constant?
• What does TENS stand for in relation to electrical stimulation?
• What type of current flows in one direction only?
• What is the unit of electrical current?
• Which material typically acts as a good insulator?
• What type of electrical current is commonly used in muscle stimulation therapy?
• What type of electrical stimulation is described as non-functional?
• Why is safety important in electrical practices?
• Which component is used to store electrical energy in an electric field?
• What do you call the measure of how much energy is used per unit of time in an electrical circuit?
• What type of current involves the machine interrupting the flow for brief periods?
• What is the SI unit of electric charge?
• What characterizes a parallel circuit in the human body?
• What is the purpose of using a fuse in an electrical circuit?
• What effect does increased pulse frequency have on muscle fatigue?
• What type of current is primarily delivered from a wall outlet?
• What are conductive fabric electrodes primarily made from?
• What is the unit of electrical resistance?
• What type of current is typically used for pain relief in TENS therapy?
• What is reactance in an electrical circuit?
• Which type of waveform is typically used for muscle stimulation?
• What component is used to convert electrical energy into mechanical energy?
• What does closer spacing of electrodes typically target?
• What is one of the primary benefits of using electrical stimulation on muscles?
• What sensation is typically associated with the depolarization of A-Delta and C fibers?
• In electrical stimulation, what does “frequency” refer to?
• Which type of electrode is often used for electrical stimulation therapies?
• What does a neuromuscular electrical stimulation (NMES) protocol include?
• What happens to current in a series circuit if one component fails?
• What information can be interpreted from the shape of a waveform?
• What is the significance of monitoring electrical parameters during therapy?
• What is the purpose of a fuse in an electrical circuit?
• How does adding resistors in a series affect total resistance?
• Which principle explains how an electric field can create a magnetic field?
• What role does a resistor play in an electrical circuit?
• What is the definition of a series circuit?
• What is the purpose of using electrodes in electrical stimulation?
• What frequencies are typically used in electrical stimulation therapies?
• Why might a doctor recommend electrical stimulation for rehabilitation?
• What does Ohm's Law state?
• What is a common frequency range for electrical stimulation units used in therapy?
• How do you calculate total resistance in a series circuit?
• What is the main purpose of a capacitor in a circuit?
• What is crucial for the effectiveness of electrical stimulation therapy?
• What does peak current refer to?
• Which law states that current is directly proportional to voltage and inversely proportional to resistance?
• What does a transformer do in an electrical circuit?
• What is a potential benefit of using electrical stimulation in muscle rehabilitation?
• What happens when an electrical circuit is short-circuited?
• What happens to fatigue as pulse frequency increases?
• How are electrical currents delivered in therapeutic applications?
• In a monopolar arrangement, how many larger dispersal electrodes are used?
• What is considered safe voltage for use in electrical stimulation therapies?
• In a parallel circuit, what happens to the total resistance as more resistors are added?
• What is voltage?
• What parameter of electrical stimulation is typically measured in microseconds?
• What is the primary characteristic of an electrical field in biological treatments?
• In the context of electrical therapy, what does "cutaneous" refer to?
• What does modulation refer to in electrical stimulation?
• How can polarity influence tissues in electrical stimulation?
• What is the primary function of a transistor?
• What does long duration depolarization primarily result in?
• What does “duty cycle” measure in electrical stimulation?
• What does "intensity" refer to in the context of electrical stimulation?
• What is the function of a circuit breaker compared to a fuse?
• Which of the following statements best describes a semiconductor?
• In electrical terms, what is capacitance?
• What is an electrical circuit?
• What is the primary purpose of electrical stimulation in medical therapy?
• What is the recommended ramp time to stimulate an antagonist muscle to a spastic muscle?
• What physiological effect occurs when directly depolarizing a nerve?
• Why is a circuit diagram considered important?
• What are the primary parameters adjusted in electrical stimulation therapy?
• What is a key characteristic of insulators?
• Which type of electrodes are commonly used in electrical stimulation?
• What device converts electrical energy into light?
• What is the primary purpose of electrical stimulation in therapeutic applications?
• What unit is electrical resistance typically measured in?
• What is meant by 'rise time' in electrical stimulation?
• What is the DC current?
• What does the acronym EMS stand for in the context of electrical stimulation?
• What is impedance in electrical terms?
• What physiological response does electrical muscle stimulation primarily evoke?
• What is a common frequency for muscle re-education in NMES therapy?
• What is the characteristic of PC current?
• What is a common method for applying electrical stimulation?
• What happens when molecules and chemicals are indirectly influenced by electrical currents?
• What do electrodes need to effectively deliver electrical stimulation?
• What is the effect of increasing resistance in a circuit?
• What is generally the most common therapeutic goal when applying electrical currents?
• What type of waveform is commonly used in electrical stimulation therapy?
• What is the unit of electrical power?
• What is the unit for measuring electric potential difference?
• What is the ramp time in electrical stimulation?
• What is an electrical circuit that provides a path for current with no breaks called?
• What role do opposites play in the creation of movement among charged cells?
• What could be a sign of adverse reaction during electrical stimulation?
• What is a diode?
• What are TENS units primarily used for?
• What does time to peak amplitude refer to in electrical stimulation?
• In which type of circuit does the current remain the same across all components?
• Which of the following is a common conductor?
• Which factor does NOT typically influence the choice of stimulation parameters?
• If tissues are poor conductors of electricity, what should you do to the amplitude?
• What is meant by pulse frequency/rate?
• In a parallel circuit, what happens to the total resistance?
• What does a higher pulse frequency typically lead to in electrical stimulation?
• Where is the current density highest when electrodes meet the skin?
• What is the primary role of an ammeter?
• In what unit is capacitance measured?
• What is a typical contraindication for electrical stimulation?
• Which nerves are depolarized first and give off a tingly feeling?
• What is described by a quadripolar setup?
• What is pulse duration in electrical stimulation?
• How are waveforms described in electrical stimulation?