Two resistors X and Y are connected in series with a power supply of emf 30 V and negligible internal resistance.
The resistors are made from wire of the same material. The wires have the same length.
X uses wire of diameter d and Y uses wire of diameter 2d.
What is the reading on the voltmeter?
1 )
10 V
2 )
15 V
3 )
20 V
24 V
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