# Current Electricity: Quiz

### Description

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.
Quiz by tatemae.honne, updated more than 1 year ago More Less
 Created by alex.examtime9373 almost 10 years ago Copied by tatemae.honne almost 10 years ago
190
3

## Resource summary

### Question 1

Question
What is the formula for potential difference?
• W/Q
• Q/W
• WxQ
• QxI

### Question 2

Question
What is the unit of capacitance?
• Ampere
• Volt
• Coulomb

### Question 3

Question
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?
• 45 V
• 5 V
• 0.2 V

### Question 4

Question
An electromotive force is a voltage that is applied to a circuit.
• True
• False

### Question 5

Question
The capacitance of a parallel plate capacitor is inversely proportional to which of the following?
• Distance
• Common area
• Permittivity
• Currrent

### Question 6

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

### Question 7

Question
Which of the following are effects of an electric current?
• Chemical
• Magnetic
• Sound
• Light
• Heat

### Question 8

Question
What is the direction of conventional current?
• Positive to negative
• Negative to positive

### Question 9

Question
Current from a battery is known as alternating current.
• True
• False

### Question 10

Question
Which of the following safety devices is the safest?
• Fuse
• Residual current device
• Miniature circuit breaker

### Question 11

Question
Calculate the heat produced when a current of 6 amps flows for 4 seconds through a conductor of resistance 2 ohms.
• 96 J
• 48 J
• 288 J
• 192 J

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