| Assertion (A): Power rating of resistance is not so important when used in a circuit. |
| Reason (R): The resistance value changes with temperature. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is NOT the correct explanation of A
C) A is true but R is false
D) A is false and R is true
Correct Answer: D
Solution :
| Option [d] is correct. |
| Explanation: Power rating describes the heat dissipation capability of the resistor. If the heat generated is more than the power rating of the resistor, it will burn. So assertion is false. |
| Resistance value is temperature dependent. So, the reason is true. But reason does not explain the assertion. |
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