Chapter 12 Part 1

Question 1

Atoms with several electrons in the outer orbit that are difficult to free such as glass, rubber, and plastic

Answer 1

Insulator

Question 2

Smallest amount of a substance that can exist

Answer 2

Atom

Question 3

Has a negative charge and travels around the nucleus in orbits or shells

Answer 3

Electron

Question 4

A coil of wire designed to carry an electrical current producing a magnetic field

Answer 4

Solenoid

Question 5

Unit of measurement for resistance

Answer 5

Ohm

Question 6

What type of circuit?
Resistances are added together to obtain the total resistance in a circuit. Current is the same regardless of where it is measured in the circuit

Answer 6

Series circuit

Question 7

Unit of measure for the charge a capacitor can store

Answer 7

Microfarad

Question 8

Located in the nucleus of an atom and has a positive charge.

Answer 8

Proton

Question 9

Used to measure current without breaking a circuit to install the meter

Answer 9

Clamp-on anmeter

Question 10

Protects the circuit from an overload

Answer 10

Circuit breaker

Question 11

Unit of measurement for power

Answer 11

Watt

Question 12

Current that travels in one direction

Answer 12

Direct current (DC)

Question 13

In a pure resistive circuit, current and voltage are in phase (True and False)

Answer 13

True

Question 14

Fuses can be reset and used again (True and False)

Answer 14

False

Question 15

A step down transformer with a 24V output, rated at 30VA, can draw a maximum current of 1.25A from the secondary (False or True)

Answer 15

True

Question 16

If three light bulbs are wired in parallel and one bulb burns out, the current in the other two branches will increase (False or True)

Answer 16

False

Question 17

Switches consume power (True or False)

Answer 17

False

Question 18

In a series circuit, E total = E1 = E2 = E3 = (True or False)

Answer 18

False

Question 19

The total equivalent resistance of a parallel circuit will always be less than the value of the lowest resistance (True or False)

Answer 19

True

Question 20

Electromotive force is used to indicate the potential difference between two charges and the unit of measure is the amp (True or False)

Answer 20

False

Question 21

The electricity that AC and heating technicians are more involved with is produced by light (True or False)

Answer 21

False

Question 22

A step-down transformer has more turns of wire in the secondary than in the primary (True or False)

Answer 22

False

Question 23

To increase a low amp reading to make it easier for an analog meter to detect, use the 10-wrap multiplier (True or False)

Answer 23

True

Question 24

In a capacitive circuit, ___ lags ___

Answer 24

Volts, current