1
1 mark
1 markPart of an electric circuit is shown.
What is the current shown by the ammeter?
3 A
4 A
5 A
6 A
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Current, Potential Difference, Resistance & Power
21 mark
1 markWhich of the following graphs shows how the current varies with potential difference for a filament lamp?
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11 mark
1 markTwo resistors are connected in parallel and the current in one of them is 2.0 A, as shown.
Which of the following is the current 
in ampere?
3.0
4.0
5.0
6.0
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21 mark
1 markWhich of the following is the total resistance of the resistors in parallel?
20 Ω
40 Ω
90 Ω
180 Ω
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31 mark
1 markA circuit consists of three identical 1.5 V bulbs connected to two 1.5 V cells.
The switch is closed.
Which row describes the change in brightness of bulb Y and bulb Z?
| Y | Z | |
| A | brighter | brighter |
| B | brighter | dimmer |
| C | dimmer | brighter |
| D | dimmer | dimmer |
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