Question

an electric bulb is rated at 5 W - 220.calculate the energy consumed by the bulb in 20 minutes . express your answer in commercial unit of electrical energy.
with steps.​

Answer 1

Answer:

P = 5W

t = 20 min = 1200 sec

energy = power × time taken

E = P × t

E = 5 × 1200

E = 6000 W/s

E = 6000 Joule.

I hope it will help u

Answer 2

$\huge\boxed{HELLO\:MATE}$

ans →60kWh

Explanation:

Given,

t=20mins=20 x 60 = 1200s.

P=2.5W

$\huge\bold{E\:=\:P\: x \:t}$

=2.5 x 1200

=60000W

in commercial unit→

$\huge \bold{ \frac{60000}{1000} \: \: kwh}$

$\huge\boxed{60\:kWh}$