| Assertion (A): The resistance of superconductor is zero. |
| Reason (R): Super conductors are used for electrical power transmission. |
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: B
Solution :
| Option [b] is correct |
| Explanation: Resistance of superconductor falls to zero at critical temperature. |
| This property is very useful for power transmission without any loss. |
| Assertion and reason both are true but reason does not explain the assertion. |
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