tatemae.honne
Quiz by , created more than 1 year ago

This quiz tests knowledge of current electricity. It covers potential difference, capacitance, electric current, Joule's law, and domestic circuits. It is best used in conjunction with the mind map on current electricity and corresponding notes and flash cards.

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alex.examtime9373
Created by alex.examtime9373 almost 11 years ago
tatemae.honne
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Current Electricity: Quiz

Current Electricity: Quiz

Question 1 of 11

1

What is the formula for potential difference?

Select one of the following:

  • W/Q

  • Q/W

  • WxQ

  • QxI

Explanation

Question 2 of 11

1

What is the unit of capacitance?

Select one of the following:

  • Ampere

  • Volt

  • Farad

  • Coulomb

Explanation

Question 3 of 11

1

What is the potential difference between two points when 15 J of work is done in moving 3 C of charge from one point to the other?

Select one of the following:

  • 45 V

  • 5 V

  • 0.2 V

Explanation

Question 4 of 11

1

An electromotive force is a voltage that is applied to a circuit.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 11

1

The capacitance of a parallel plate capacitor is inversely proportional to which of the following?

Select one of the following:

  • Distance

  • Common area

  • Permittivity

  • Currrent

Explanation

Question 6 of 11

1

When measuring the current of a piece of wire in a circuit, the ammeter is placed in parallel with the component it is measuring.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 11

1

Which of the following are effects of an electric current?

Select one or more of the following:

  • Chemical

  • Magnetic

  • Sound

  • Light

  • Heat

Explanation

Question 8 of 11

1

What is the direction of conventional current?

Select one of the following:

  • Positive to negative

  • Negative to positive

Explanation

Question 9 of 11

1

Current from a battery is known as alternating current.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 11

1

Which of the following safety devices is the safest?

Select one of the following:

  • Fuse

  • Residual current device

  • Miniature circuit breaker

Explanation

Question 11 of 11

1

Calculate the heat produced when a current of 6 amps flows for 4 seconds through a conductor of resistance 2 ohms.

Select one of the following:

  • 96 J

  • 48 J

  • 288 J

  • 192 J

Explanation

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