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Chapter 5: Basic Principles of Electricity and Electrical Stimulating Currents

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Electrons tend to flow from areas of low concentration to areas of high concentration.

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a. True

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b. False

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b. False

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Insulators resist current flow.

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a. True

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b. False

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a. True

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The greater the voltage, the greater the amplitude is.

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a. True

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b. False

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a. True

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The cathode is the negatively charged electrode in a DC system.

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a. True

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b. False

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a. True

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Chronaxie refers to the minimum current intensity needed for tissue excitation if applied for a maximum time.

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a. True

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b. False

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b. False

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The electrode with the greatest current density is the active electrode.

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a. True

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b. False

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a. True

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A particle of matter with very little mass and a negative charge is a(n)

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a. ion

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b. electron

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c. neutron

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d. proton

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b. electron

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What is the name of the unit measuring the force necessary to produce electron movement?

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a. ampere

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b. coulomb

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c. volt

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d. watt

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c. volt

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In ______________ current, electron flow constantly changes direction.

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a. alternating

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b. direct

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c. pulsatile

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d. galvanic

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a. alternating

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When the current increases gradually to a maximal amplitude, it is ...

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