Question

answer this with explanation otherwise dont ​

Answer 1

Answer:

R = 10

Explanation:

P = (V)^2 / R

Here P = 30 watt ; Potential difference = 10V

Equivalent resistance of the circuit = 5R/ 5 + R

Applying the formula of P = (V)^2/R ,

(10)^2 ÷ 5R/(5 + R) = 30

5R/(5 + R) = 100/30 = 10/3

10(5 + R) = 3(5R)

10R + 50 = 15R

15R - 10R = 50

5R = 50

R = 10