Question

An electrical resistance is marked 1000w-200v.
The resistance is (a) 41 ( b) 39,(c) 20 (d)40​

Answer 1

Answer:

40 ohms.

Explanation:

P=VI

I=P/V= 1000/200 = 5 A

R=V/I = 200/5 = 40 ohms.