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Current and Circuits A

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Materials that cut down or resist the flow of charges are called?

a)

conductor

b)

insulator

c)

resistor

d)

circut

2.
A conductor is?
a)
material that current can pass through easily
b)
material that current cannot pass through easily
c)
magnet
d)
electric current
3.

One amp is defined as the rate of charge flow equal to __ coulomb per second.

a)

3

b)

2

c)

4

d)

1

4.

What is the power when a voltage of 120 V drives a 2-A current through a device?

a)

120 Watts

b)

360 Watts

c)

240 Watts

5.

A circuit with only one path for the current to flow is a __________________.

a)

parallel circuit

b)

series circuit

c)

mini circuit

d)

device

6.

How many Volts would we need to produce a current of 8 Amps through a 6 Ohm resistor?

a)

1.33 volts

b)

24 volts

c)

0.75

d)

48 volts

7.

A light circuit is operating at 75 Volts. What is the circuit's current if the resistance is 5 Ohms?

a)

375 Amps

b)

50 Amps

c)

15 Amps

d)

0.07 Amps

8.

What resistance is needed to cause a 20A current flow with a 100V battery?

a)

0.2Ώ

b)

2000Ώ

c)

200Ώ

d)

5Ώ

9.
What kind of circuit is this?
a)
series
b)
parallel
c)
solo
d)
circle
10.

A shorthand method to represent the arrangement of the parts in a circuit is known as a(n):

a)

circuit diagram

b)

closed circuit

c)

electric charge

d)

switch

11.

An equation that states current = voltage / resistance is known as:

a)

potentiometer

b)

Kirchoff's current law

c)

Ohm's law

d)

resistor

12.

If the voltage across the battery was 10V in this diagram, what would be the voltage across each light bulb?

a)

10V

b)

5V

c)

20V

d)

0V

13.
If a circuit has 12 amps of current and the resistance is 20 ohms, the applied voltage is _____.
a)
120V
b)
240V
c)
270V
d)
380V
14.
If two 10-ohm resistors are connected in series, what is the total resistance of these resistors?
a)
100 ohms
b)
20 ohms
c)
5 ohms
d)
1 ohm
15.

When there is only one path for electrons to move through it is called a _____. When one light goes out, they all go out.

a)

closed circuit

b)

parallel circuit

c)

series circuit

d)

open circuit

16.

This image represents what type of circuit?

a)

open

b)

circular

c)

series

d)

parallel

17.

A circuit with 3 resistors, 10 Ohms, 30 Ohms and 20 Ohms are in series. What is the total resistance

a)

30 Ohms

b)

50 Ohms

c)

60 Ohms

d)

100 Ohms

18.
A material in which electrons are not able to move easily 
a)
Circuit 
b)
Insulator 
c)
Resistance 
d)
Conductor
19.

What is the resistance of a lamp that draws a current of 0.20A when connected to a 12V source?

a)

60Ω

b)

2.4Ω

c)

0.017Ω

d)

12Ω

20.
What size resistor would produce a current flow of 5 Amps with a battery voltage of 12.6 volts
a)
60 Ohms
b)
2.52 Ohms
c)
1.71 ohms
d)
5.04 Ohms