Question

State which has a higher resistance a 50 W or a
25 W lamp bulb and how many times? [SAI - 2005)
the
electric bulbs.
172​

Answer 1

Answer:

Resistance R = V2/P, where V is the potential difference and P is the power in Watts. So, the more the power, the lower will be the resistance and vice versa. Or, R2 = 2R1. Thus, 25 W bulb will have double the resistance as compared to 50 Watt bulb.

Explanation: