railway RRB JE (CBT I + CBT II) Mock Test 2024 Network Theory Network Elements

A copper coil has a resistance of 20 Ω at 0°C. Find the resistance of the coil at 25°C. The temperature co-efficient of copper is 0.0042 at 0°C.

1

22.1 Ω

2

41 Ω

3

20.105 Ω

4

21.05 Ω

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