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CHAPTER 1

Total questions: 40

Worksheet time: 30mins

Name
Class
Date
1.

An electrical component that we use in electronics circuits to limit current though an active component or to reduce voltage in the circuit.

a)

Capacitor

b)

Current

c)

Resistor

d)

Ancestor

2.

What is the unit of measurement for resistance?

a)

Voltage

b)

Ampere

c)

Watts

d)

Ohms

3.

A resistor's first three color bands are brown, black, and red. What is its value?

a)

10 ohms

b)

10K ohms

c)

200 ohms

d)

1000 ohms

4.

Which digit on the 1st band does the color yellow denote on a resistor color band?

a)

3

b)

2

c)

4

d)

7

5.

A 47K ohm resistor would have which colors on its first three bands?

a)

Yellow, Violet, White

b)

Yellow, Violet, Orange

c)

Red, White, Blue

d)

Orange, Yellow, Violet

6.

Which digit does the color orange denote on a resistor color band?

a)

2

b)

4

c)

3

d)

5

7.

Which of these colors is NOT used in the resistor value color code?

a)

White

b)

Black

c)

Violet

d)

Pink

8.

The gold color band refers to__________tolerance.

a)

+ / - 20%

b)

+ / - 10%

c)

+ / - 5%

d)

zero

9.

What are the color codes for a 470K ohm resistor?

a)

Orange, Grey, Orange

b)

Yellow, Violet, Yellow

c)

Yellow, Violet, Orange

d)

Orange, Grey, Yellow

10.

What is the tolerance for a Red, Brown, Brown, Silver resistor?

a)

1%

b)

20%

c)

5%

d)

10%

11.

What color that has a multiplier of x1000

a)

Red

b)

Orange

c)

Blue

d)

Brown

12.

What is the tolerance for a Green, Red, Black, Gold resistor?

a)

1%

b)

20%

c)

5%

d)

10%

13.

What is the color code for a Orange, Black, Red resistor?

a)

3K Ohms

b)

200 Ohms

c)

2K Ohms

d)

300 Ohms

14.

What is the purpose of a resistor?

a)

allow current flow

b)

control current flow

c)

prevent current flow

d)

allow heat to build up

15.

What is the resistance for a Red, Green, Blue color resistor?

a)

250,000 ohms

b)

25K ohms

c)

25,000,000 ohms

d)

250K ohms

16.

What is the multiplier for color Green?

a)

x10,000

b)

x1,000,000

c)

x100,000

d)

x1,000

17.

brown, red, red, gold resistor is:

a)

1000 ohms

b)

1200 ohms

c)

1400 ohms

d)

2400 ohms

18.

orange, orange, brown, gold resistor is

a)

320 ohms

b)

340 ohms

c)

360 ohms

d)

330 ohms

19.
Resistor Value ?
a)
36 Ω +/- 5 %
b)
350 Ω +/- 5%
c)
250 Ω +/- 5 %
d)
360 Ω +/- 5 %
20.
Resistor Value ?
a)
1 kΩ +/- 5 %
b)
10 kΩ +/- 10%
c)
10 kΩ +/- 5 %
d)
103 Ω +/- 10 %
21.
Resistor Value ?
a)
10 MΩ +/- 5 %
b)
10 kΩ +/- 5 %
c)
1 MΩ +/-5 %
d)
100 MΩ +/- 5%
22.
Resistor Value ?
a)
370 Ω +/- 5%
b)
470 Ω +/- 5%
c)
471 Ω +/- 5%
d)
460 Ω +/- 5%
23.
Resistor Value ?
a)
1 kΩ +/- 5 %
b)
2 kΩ +/- 5 %
c)
202 Ω  +/- 20 %
d)
212 Ω +/- 10 %
24.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
25.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
26.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
27.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
28.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
29.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
d)
light
30.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
10 V
c)
2.5 V
d)
0.4 V
31.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
32.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
33.
This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?
a)
3 Amps
b)
192 Amps
c)
2 Amps
d)
4 Amps
34.

In order for electricity to flow through a circuit, the circuit must be a closed, complete:

a)

Path, so that the electricity can make a complete circle.

b)

Donut, because circuits get hungry.

c)

Wire, made out of rubber.

d)

Solar panel, because circuits only work with the sun.

35.

Electrical power can be calculated using

a)

Resistance x Voltage

b)

Voltage x Current

c)

Voltage ÷ Current

d)

Voltage + Current

36.

Watts is the same as...

a)

Voltage per second

b)

Current per second

c)

Joules per second

d)

all of these

37.

The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?

a)

170 A

b)

170 W

c)

170 ohm

d)

1.7 W

38.

A pair of 15-watt computer speakers are connected to a 12-volt power supply. what is the electric current running through the speakers?

a)

1.25 A

b)

0.8 A

c)

12.5 A

d)

180 A

39.

Calculate the electric power of an electrical appliance in which 10 A of current is flowing through a resistor of 2 ohms.

a)

80 W

b)

200 W

c)

2.5 A

d)

22.5 k W

40.

The power of an appliance is...

a)

the amount of energy transferred per second

b)

the amount of voltage going through it

c)

the amount of charge that passes through per second

d)

None

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