Question

In an ac circuit R = 4cm ,Z = 5 ohm ,Vrms = 200V & Irms = 1.5 A. Find average power consumed over a full cycle.

a. 200 V

b. 220 W

c. 240 W

d. 260 W
​

Answer 1

Answer:

240W

Explanation:

P average =Vrms.Irms.cosθ

=Vrms.Irms.R/z

= 200 × 1.5 × 4/5

P average = 240 W

So, option C is the correct answer

Answer 2

Answer:

option b) 220w is a correct.