Free Printable Current Voltage and Resistance and Ohm's Law Calculation

Worksheets

Current Voltage and Resistance and Ohm's Law Calculation

Total questions: 21

Worksheet time: 20mins

Name

Class

Date

What is resistance measured in?

volts

Amperes (Amps)

Ohms

Coulombs

Three 2 Ohm resistors are placed in series.
What is the total resistance of the circuit?

2 Ohms

6 Ohms

24 Ohms

Depends on the battery

What is the equivalent or total resistance (R_e) across this circuit?

50 Ω

100 Ω

300 Ω

450 Ω

What is the formula for R_Tfor resistors in series?

R_t=I/V

R_T=R₁+R₂

R_T=1/R₁+1/R₂

1/R_T=1/R₁+1/R₂

What is the formula for R_Tfor resistors in parallel?

R_t=I/V

R_T=R₁+R₂

R_T=1/R₁+1/R₂

1/R_T=1/R₁+1/R₂

Every time the number of components in a series circuit increases,

... the current decreases more

... the current increases more

... the voltage increases more

Power outlets in your home are arranged ...

In series so that it's simpler

In parallel so that they all receive the same current

In parallel so that they all receive the same voltage

resistance?

1/rtot = (1/5) + (1/8) + (1/3) Ω

120 Ω

1.5189873 Ω

1/rtot = (1/5) * (1/8) * (1/3) Ω

Current is a measure of:

force that moves a charge past a point

resistance to the movement of a charge past a point

energy used to move a charge past a point

amount of charge that moves past a point per unit time

10.

A 3A current flows through a television. How long would it take for 1500C to flow through it?

4500s

500s

50s

450s

11.

The total charge that flows though a wire in 25s is 1kC. What is the average current through the wire?

20,000A

0.04A

40A

25A

12.

What is the effective resistance for two resistors that each has 15ohm resistance and they are connected in parallel?

7ohm

7.5ohm

7.2ohm

7.25ohm

13.

What is the formula for resistance?

V x I = R

R = V/I

14.

Voltage is measured in __.

volts.

watts.

coulombs.

15.

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

1 Ohm

3 Ohms

4 Ohms

12 Ohms

16.

what is this symbol for?

light bulb

switch

battery

resistor

17.

this is the symbol for a _____?

switch

light

battery

wires

18.

What kind of circuit is this?

Series

Consecutive

Parallel

Training

19.

What would the voltmeter read

20.

The resistance of a circuit with 1 A of current and 30 volts of potential difference is

15 Ω

30 Ω

0.03 Ω

None of these

21.

The current of circuit with a voltage of 12 V and a resistance of 4 ohms is

48 A

3 A

0.3 A

none of these

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Current Voltage and Resistance and Ohm's Law Calculation

Total questions: 21

Worksheet time: 20mins

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