A heating element has a resistance of 100Ω at room temperature. When it is connected to a supply of 220V, a steady current of 2A passes in it and temperature is 500oC more than the room temperature. The temperature coefficient of resistance of the heating element is
Held on 16 Apr 2018 · Verified 6 Jul 2026.
5×10−4oC−1
2×10−4oC−1
1×10−4oC−1
0.5×10−4oC−1
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