Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): |
When an external resistor of resistance R (connected across a cell of internal resistance r) is varied power consumed by resistance R is maximum when R=r. |
Reason (R): |
Power consumed by a resistor of constant resistance R is maximum when the current through it is maximum. |
In the light of the above statements choose the correct answer from the options given below:
1. |
Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. |
Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. |
(A) is true but (R) is false. |
4. |
Both (A) and (R) are false. |
Subtopic: Heating Effects of Current |