Fuse Quiz

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Fuse Quiz

• Here are six multiple-choice questions about
  circuits with fuses.

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Fuse Question 1

• Look at this circuit.
• What is the component labelled 1?
• Cell
• Battery
• Variable resistor
• Bulb

3
Fuse Question 2

• Look at this circuit.
• What is the component labelled 2?
• Cell
• Ammeter
• Variable resistor
• Fuse

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Fuse Question 3

• The bulb blows
• The bulb glows brightly
• The fuse blows
• The battery blows

The bulb in this circuit will blow above 90mA.
The fuse is rated as 50mA. The maximum current is
90mA. What will happen as the variable resistor
is slowly altered?
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Fuse Question 4

• The bulb blows
• The bulb glows brightly
• The fuse blows
• The battery blows

The bulb in this circuit will blow above 90mA.
The fuse is rated as 100mA. The maximum current
is 90mA. What will happen as the variable
resistor is slowly altered?
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Fuse Question 5

• 1 and 2 will glow
• 1 will glow and 2 will go out
• 1 will go out and 2 will glow
• 1 and 2 will go out

Bulbs 1 and 2 in this circuit are in parallel.
What will happen to them when the fuse blows in
this circuit?
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Fuse Question 6

• 3A fuse
• 5A fuse
• 13A fuse

An electric iron draws 7Amps from the mains
supply. Fuses in household plugs are available as
3A, 5A and 13A ratings. Which fuse would you
choose in the irons plug?
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Fuse Answers

• B. Battery
• D. Fuse
• C. The fuse blows
• B. The bulb glows brightly
• D. 1 and 2 will go out
• B. 13A fuse