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Assertion (A): When two bulbs are operat...

Assertion (A): When two bulbs are operated on same voltage supply, having power 60 W and 100 W then 100 W bulb has less resistance than 60 W.
Reason (R): The power of the bulb is directly proportional to the square of the voltage.

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

Text Solution

Verified by Experts

The correct Answer is:
B
Since, power `(P) = (V^(2))/(R ) or R prop (1)/(P)`
Hence , 100 W bulb has less resistance
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