Electrical Current test 11/21

Question 1

Ions

Answer 1

A positively or negatively charged particle

Question 2

Electrical current

Answer 2

The net movement of electrons along a conducting medium

Question 3

Volt

Answer 3

The electromotive force that must be applied to produce a movement of electrons. A measureof electrical power

Question 4

Conductors

Answer 4

Materials that permit the free movement of electrons

Question 5

Insulators

Answer 5

Materials that resist current flow

Question 6

Resistance

Answer 6

The opposition to electron flow in a conducting material

Question 7

Waveform

Answer 7

The shape of an electrical current as displayed on an oscilloscope

Question 8

Monophasic Current

Answer 8

Another name for direct current, in which the direction of current flow remains the same

Question 9

Accommodation

Answer 9

Adaptation by the sensory receptors to various stimuli over an extended period of time

Question 10

Ohm

Answer 10

A unit of measure that indicates resistance to current flow

Question 11

Pulse

Answer 11

An individual waveform

Question 12

Biphasic current

Answer 12

Another name for alternating current in which the direction of current flow reverses direction

Question 13

Amplitude

Answer 13

The intensity of current flow as indicated by the height of the waveform from baseline

Question 14

Duration

Answer 14

Sometimes also referred to as pulse width. Indicates the lenght of time the current is flowing

Question 15

Alternating current (maybe polyphasic?)

Answer 15

Current that periodically changes its polarity or direction of flow.