Question

an electric bulb of 200w and 100v find its resistance​

Answer 1

Answer:

It's resistance is 50 Ω

Explanation:

Given,

Potential Difference (V) = 100 V

Power (P) = 200 W

To find : Its Resistance

Solution:

Using the relation,  P = V² / R

here, P = 200 W, V = 100 V

Substituting the values,

200 = 100 * 100 / R

R = 100* 100 / 200

R = 50 Ω

Therefore, It's resistance is 50 Ω