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Worksheets

Series and Parallel Circuits + Electrical Power 2022

Total questions: 43

Worksheet time: 2hrs 49mins

Name
Class
Date
1.
This is an example of a _______ circuit
a)
open
b)
series
c)
parallel
d)
square
2.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
3.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
4.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
5.
What type of circuit is used in your house?
a)
Light Circuits
b)
The best circuits
c)
Series Circuits
d)
Parallel Circuits
6.
What is the type of circuit that stops working when one bulb goes out?
a)
A broken circuit
b)
Parallel Circuit
c)
Series Circuit
d)
A metal circuit
7.
What is the energy source for a circuit?
a)
Light bulb
b)
Battery
c)
Wire
d)
Switch
8.
What is it called when a circuit is complete?
a)
Closed circuit
b)
Light bulb circuit
c)
Open circuit
d)
Series circuit
9.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
10.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will stay on
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
11.
Which of the two circuits would have the brightest bulbs? 
a)
A
b)
B
12.
When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.
a)
parallel
b)
series
c)
open
d)
closed
13.
a)
Series circuit - Bulbs are lit
b)
Series circuit - Bulbs are off
c)
Parallel circuit - Bulbs are lit
d)
Parallel circuit - Bulbs are off
14.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
15.
The total resistance in this circuit is 
a)
100 ohms
b)
450 ohms
c)
400 ohms
d)
30 ohms
16.
The total current through this circuit is
a)
0.02 amps
b)
0.09 amps
c)
50 amps
d)
9 amps
17.
The voltage dropped across the 300 ohm resistor is 
a)
6 V
b)
9 V
c)
2 V
d)
30 V
18.

What is the total resistance (RT) across this circuit?

a)

3 kΩ

b)

10 kΩ

c)

13 kΩ

d)

18 kΩ

19.
As resistors are added in series to a circuit, the total resistance will...
a)
increase
b)
decrease
c)
stay the same
20.
As the resistance of a circuit increases, the current will...
a)
increase
b)
decrease
c)
stay the same
21.
In a parallel circuit which of the following is the same value throughout the circuit?
a)
Voltage
b)
Current
c)
Resistance
d)
Charge
22.
The current going through the 45 ohm resistor is 
a)
0.05 amps
b)
0.2 amps
c)
0.1 amps
d)
5 amps
23.

The circuit diagram above represents four resistors connected to a 12-volt source. What is the total current in the circuit?

a)

2.0 A

b)

0.50 A

c)

24 A

d)

8.6 A

24.

If another bulb is added in a parallel circuit, each bulb would

a)

stay the same

b)

get dimmer

25.

In a series circuit, if one bulb burns out, the other bulbs

a)

stay on

b)

go out

26.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
27.

Each battery is a 10-V battery. What is the voltage difference between points B and D?

a)

10 V

b)

20 V

c)

30 V

d)

40 V

28.

CIrcuit elements connected in series have the same

a)

voltage drop across them.

b)

current through them.

c)

power dissipation by them.

d)

None of the above.

29.

CIrcuit elements connected in parallel have the same

a)

voltage drop across them.

b)

current through them.

c)

power dissipation by them.

d)

None of the above.

30.

100 Ω resistors are hooked in series. The equivalent resistance will be

a)

less than 100 Ω.

b)

100 Ω.

c)

more than 100 Ω.

d)

More information is needed.

31.

100 Ω resistors are hooked in parallel. The equivalent resistance will be

a)

less than 100 Ω.

b)

100 Ω.

c)

more than 100 Ω.

d)

More information is needed.

32.
The picture shows an electrical circuit. This circuit is a series circuit because: 
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current is divided between the three light bulbs.
33.

What is the total resistance (RT) across this circuit?

a)

3 kΩ

b)

10 kΩ

c)

13 kΩ

d)

18 kΩ

34.
This circuit has more than one loop. When one light goes out, the others stay on. 
a)
closed circuit
b)
series circuit
c)
parallel circuit
d)
open circuit
35.

Using the circuit shown solve for Total resistance (RT)

a)

10 Ohms

b)

6 ohms

c)

3 ohms

d)

2 ohms

36.

Using the circuit shown solve for Total current flowing through the circuit (IT)

a)

4 A

b)

3 A

c)

2 A

d)

1 A

37.

Using the circuit shown solve for Current flowing through R3 (IR3)

a)

2 A

b)

1 A

c)

500 mA

d)

5 mA

38.
Electrical power can be calculated using
a)
Resistance x Voltage
b)
Voltage x Current 
c)
Voltage ÷ Current
39.
The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?
a)
170 W
b)
170 A
c)
1.7 V
d)
1.7 W
40.
Watts is the same as...
a)
Joules per second
b)
Voltage per second
c)
Current per second
41.
Calculate the electric power of an electrical appliance in which 10 A of current is flowing through a resistor of 2 ohms.
 
Remember: V=IR and P=VI
a)
80 W
b)
200 W
c)
2.5 A
d)
22.5 KJ
42.
What will be the current drawn by an electric bulb of 1000 W when it is connected to a source of 220 V?
Remember: I = P/V
a)
4.55 A
b)
28800 J or 28.8 KJ
c)
80 W
d)
200 W
43.
If an oven has a power of 2000 W and the voltage is 230 V what fuse is required?
a)
3A
b)
5A
c)
13A

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