Block 1 Concepts

Question 1

What is the number of KCL equations in a circuit equal to?

Answer 1

nodes

Question 2

According to KVL, the sum of ___ in ____a loop is zero.

Answer 2

voltages, closed

Question 3

What is shared by devices connected in series?

Answer 3

current

Question 4

Voltage division applies to resistors connected in ___.

Answer 4

series

Question 5

To find RMS value of a sinusoidal voltage, divide the amplitude by?

Answer 5

√2

Question 6

What does KCL state about the net flow of current in and out of a node?

Answer 6

zero

Question 7

Which voltage must be used when working with AC sources and calculating power?

Answer 7

RMS voltage

Question 8

Which law in a transformer explains the voltage drop caused by an alternating magnetic field?

Answer 8

Faraday’s Law

Question 9

What type of current do transformers work with?

Answer 9

AC power

Question 10

What kind of energy conversion does a generator perform?

Answer 10

mechanical to electrical

Question 11

What does a bus deliver the same of to all connected devices?

Answer 11

voltage

Question 12

What is the main purpose of a transformer?

Answer 12

step up or step down voltage or current

Question 13

What devices rectify an AC signal by allowing current in one direction only?

Answer 13

diodes

Question 14

What type of energy conversion does a motor perform?

Answer 14

electrical to mechanical

Question 15

Which voltage must be used when calculating AC power?

Answer 15

RMS voltage

Question 16

Why does our country use AC power instead of DC?

Answer 16

improved efficiency

Question 17

What is the best form of power equation to find line loss before a transformer?

Answer 17

I²R

Question 18

In a transformer, which statement is true about power?

Answer 18

P1 = P2

Question 19

What devices smooth out voltage in an AC/DC converter?

Answer 19

capacitors

Question 20

When calculating efficiency (η), what should you use instead of voltage or current?

Answer 20

power values

Question 21

Which of the listed power sources does NOT provide intermediate power?

A. Wind
B. Nuclear
C. Natural Gas
D. Hydroelectric

Answer 21

Nuclear

Question 22

In a motor, what is the rotating magnet called?

Answer 22

rotor

Question 23

In a motor, what is the stationary magnet called?

Answer 23

stator

Question 24

Match: Current

Answer 24

The actual flow of electrons

Question 25

Match: Voltage

Answer 25

The potential which causes electrons to flow

Question 26

Match: Energy

Answer 26

Electrical charge which allows work to be done

Question 27

Match: Resistance

Answer 27

The ability of a material to resist electron flow

Question 28

Match: Terra

Answer 28

10¹²

Question 29

Match: Femto

Answer 29

10⁻¹⁵

Question 30

Match: Nano

Answer 30

10⁻⁹

Question 31

Match: Mega

Answer 31

10⁶

Question 32

Step 1 of AC-to-DC conversion is?

Answer 32

Transformation

Question 33

What component performs the transformation step in AC-to-DC conversion?

Answer 33

Transformer

Question 34

Step 2 of AC-to-DC conversion is?

Answer 34

Rectification

Question 35

What component performs the rectification step in AC-to-DC conversion?

Answer 35

Diode

Question 36

Step 3 of AC-to-DC conversion is?

Answer 36

Smoothing

Question 37

What component performs the smoothing step in AC-to-DC conversion?

Answer 37

Capacitor

Question 38

Step 4 of AC-to-DC conversion is?

Answer 38

Voltage Regulation

Question 39

What component performs the voltage regulation step in AC-to-DC conversion?

Answer 39

Voltage Regulator