Electricity and Electrical safety

the movement of electrons from one atom to another along a conductor is called _______

• an electric charge

• electricity

• energy flow

• sparks

electric wires can be covered with a material that does not transmit electricity such as rubber or plastic coating. This material is known as _______.

• an insulator

• a conductor

• a circuit

• a fuse

an apparatus that changes direct current to alternating current is ______

• a rectifier

• an inverter

• a fuse box

• a circuit breaker

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

• rectifier current

• alternating current

• active current

• direct current

the unit that measure the pressure or force that pushes the electric current forward through a conductor is

• an amp

• a watt

• an ohm

• a volt

which unit measures the resistance of an electric current

• ohm

• watt

• amp

• volt

the device that prevents excessive current from passing through a circuit is called _____

• a fuse

• a battery

• a kilowatt

• an ampere

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

• a voltage regulator

• an ampere interrupter

• a circuit breaker

• a battery charger

the negative electrode of an electrotherapy device is called ______

• an anode

• an electron

• a carbide

• a cathode

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

• a cataphoresis

• an anaphoresis

• an iontophoresis

• microcurrent