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A heating element has a resistance of 100 `Omega` at room temperature. When it is connected to a supply of 220 V, a steady current of 2A passes in it and temperature is `500^(@)C` more than room temperature. What is the temperature coefficient of resistance of the heating element ?A. `2xx10^(-4).^(@)C^(-1)`B. `0.5xx10^(-4).^(@)C^(-1)`C. `1xx10^(-4).^(@)C^(-1)`D. `5xx10^(-4).^(@)C^(-1)` |
Answer» Correct Answer - A | |