Question

an electric heater ( 4kw, 200V). Find a) Current b) energy consumed in 1hr​

Answer 1

Answer:

Power=4kw means 4000 W

Voltage of supply V=200V

so, I(current )= P/V

Explanation:

a).4000/ 200=20 ampere Ans.

.4000/ 200=20 ampere Ans.b) energy consumed in 1 hr. = P×T

.4000/ 200=20 ampere Ans.b) energy consumed in 1 hr. = P×T4kw ×1 hr.= 4kwh.