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Worksheets

Series Circuits

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

Solve for the total resistance of the circuit shown

a)

50 V

b)

1970 ohms

c)

705 K ohms

d)

20 Amps

2.

Solve for total Current in the circuit shown

a)

25 Amps

b)

35 amps

c)

25 milliamps

d)

35 milliamps

3.

Solve for the current flowing through Resistor # 1

a)

35 amps

b)

25 amps

c)

35 milliamps

d)

25 milliamps

4.

Solve for the voltage drop at resistor 1

a)

38 volts

b)

60 Kvolts

c)

50 volts

d)

25 volts

5.

Voltage drop stands for what?

a)

the voltage applied to a circuit

b)

the voltage flowing through a resistor

c)

the voltage used by a load

6.

With three 10 resistors connected in series with a 30 volt power supply, the total circuit current will equal ____.

a)

300 amps

b)

1 amp

c)

150 amps

d)

1 millamp

7.

The wattage value for any resistor is equal to ____.

a)

I X R

b)

E/R

c)

I X E

d)

I/R

8.

Total series circuit wattage is equal to source voltage ____.

a)

multiplied by the voltage value going through any resistor

b)

multiplied by the current value going through any resistor

c)

divided by the current value going through any resistor

d)

divided by the voltage applied to the circuit and the total resistance of the circuit

9.

Using the circuit shown solve for total power dissipated in this circuit.

a)

20 watts

b)

30 watts

c)

1.8 Kilowatts

d)

180 watts

10.

The wattage being dissipated at R3 is ______________________________ W.

a)

18

b)

54

c)

36

11.

The voltage drop across R1 is ______________________________ V.

a)

20

b)

30

c)

40

d)

50

12.

The wattage being dissipated at R2 is _______________ W.

a)

27

b)

12

c)

15

d)

36

13.

When a resistor in a series circuit is replaced by another resistor with an increased resistance value, the total circuit current will __________.

a)

stay the same

b)

decrease

c)

increase

d)

double in value

14.

This circuit has only one path for current to flow

a)

series

b)

parallel

c)

combination

d)

split

15.

The formula I2 * R is used to find what?

a)

Current

b)

Voltage

c)

Resistance

d)

Power

16.

The formula E2/R

a)

Voltage

b)

Current

c)

Power

d)

Resistance

17.

__________ remains the same in a series circuit.

a)

Resistance

b)

Voltage

c)

Current

d)

Power

18.

What is the total circuit resistance of the following five resistors connected in series?

R1 = 27 ohms

R2 = 33 ohms

R3 = 51 ohms

R4 = 1.2 kohms

R5 = 240 ohms

Rt = __________ Ohms

a)

353.2

b)

1551

c)

1.9 K

19.

What is the total circuit resistance of two 25 ohm resistors and three 75 ohm resistors connected in series?

a)

100 ohms

b)

200 ohms

c)

275 ohm

d)

175 ohms

20.

What happens to total current in a series circuit when the total voltage stays the same, circuit resistance decreases, current will ____________.

a)

increase

b)

Stay the same

c)

Decrease