Cos chapter 13

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There are 30 questions in this lesson.
Question Answer
1

The movement of electrons from one atom to another along a conductor is called ________________

electricity 

2

Electric wires can be covered with a material that DOES NOT transmit electricity such as a rubber or plastic coating. This material is known as ____________

an insulator 

3

An apparatus that changes direct current to alternating current is _____________

an inverter 

4

The term ____________ refers to a rapid and interrupted current, flowing first in one direction and then in the opposite direction 

alternating current 

5

The unit that measures the pressure of force that pushes the electric current forward through a conductor is ____________

a volt 

6

Which unit measures the resistance of an electric current? 

Ohm 

7

The device that prevents excessive current from passing through a circuit is called ___________

a fuse 

8

A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is ____________

a circuit breaker 

9

The negative electrode of an electrotherapy device is called _____________

a cathode 

10

A process that infuses an alkaline product into the tissues from the negative pole toward the positive pole is called ______________

an anaphoresis