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Resistors

Total questions: 11

Worksheet time: 10mins

Name
Class
Date
1.

Four resistors in series 5ohms, 10ohms, 5ohms, 20ohms

Total resistance is -

a)

5 ohms

b)

30 ohms

c)

40 ohms

d)

50 ohms

2.

Resistors in series 5ohms, 5ohms, 5ohms

What is the total resistance

a)

15ohms

b)

20ohms

c)

5ohms

d)

30ohms

3.

Resistors in parallel - 5ohms, 5ohms, 5ohms

which is the correct formula?

a)

Rt = 1/R1 + 1/R2 + 1/R3

b)

1/Rt = 1/R1 + 1/R2 + 1/R3

c)

Rt = 1/R1 x 1/R2 x 1/R3

d)

1/Rt = R1 + R2 + R3

4.

Resistors in parallel, 5ohms, 5ohms, 5ohms

total resistance is

a)

5 + 5 + 5 = 15 ohms

b)

1/5 + 1/5 + 1/5 = 3/5 ohms

c)

1/5 + 1/5 + 1/5 = 3/5 flipped = 5/3 ohms

d)

1/5 + 1/5 + 1/5 = 3/15 ohms

5.

2 resistors in parallel 4ohms and 8ohms, the total resistance will be

a)

less than 4ohms

b)

more than 4ohms

c)

more than 8ohms

d)

less than 1ohm

6.

what is the total resistance of the circuit above?

a)

8ohms

b)

9ohms

c)

4ohms

d)

2ohms

7.

what is the total resistance of this circuit?

a)

5.5 ohms

b)

6.5 ohms

c)

2.5 ohms

d)

4.5 ohms

8.

If a circuit has 10 ohms resistance and 100 volts, what will the current be?

a)

10 amps

b)

100 amps

c)

1000 amps

d)

1 amp

9.

If a circuit has 200 volts and total resistance is 20 ohms, what will the current be?

a)

20 amps

b)

30 amps

c)

10 amps

d)

50 amps

10.

If a circuit of 400 volts with a current of 10 amps, what will the power be?

a)

400 watts

b)

40 watts

c)

40,000 watts

d)

4000 watts

11.

If a circuit has 100 volts and a current of 20 amps is flowing, what power would be consumed?

a)

200 watts

b)

2000 watts

c)

1000 watts

d)

10 watts