Electric Current and Ohm's Law

Electric Current and Ohm's Law

9th Grade

15 Qs

quiz-placeholder

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Electric Current and Ohm's Law

Electric Current and Ohm's Law

Assessment

Quiz

Science

9th Grade

Hard

Created by

Lisa Thompson

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.

60Ω

120Ω

180Ω

240Ω

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Speakers need a household voltage of 110 V to push a current of 5.5 A through them. What is the resistance of the speakers?

10Ω

20Ω

30Ω

40Ω

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

An IPod uses a standard 1.5 V battery. How much resistance is in the circuit if it uses a current of 0.01A?

50Ω

100Ω

150Ω

200Ω

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A circuit contains a 1.5 volt battery and a bulb with a resistance of 3 ohms. Calculate the current.

0.5A

1A

1.5A

2A

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What current flows through a hair dryer plugged into a 120 Volt circuit if it has a resistance of 25 ohms?

2.4A

3.6A

4.8A

6A

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the

circuit?

5A

10A

15A

20A

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A 12 Volt car battery pushes charge through the headlight circuit resistance of 10 ohms. How much current

is passing through the circuit?

1A

1.2A

1.4A

1.6A

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