Question

two resistors of 10 ohm and 20 ohm are connected in series across a 20 v battery. Calculate the power consumed by each of them ?​

Answer 1

Answer:

4.44 watt and 8.88 watt

Step-by-step explanation:

R1= 10 ohm R2=20 ohm

R=R1+R2

10+20=30 ohm

V=20v

I=V/R=20/30amp

P=I^2*R or V^2/R

=(20/30)^2*30 or (20)^2/30

= 13.33 watt

so total power is 13.33

power consumed by 10 ohm resistance is

(13.33*10)/30 = 4.44 watt

power consumed by 20 ohm resistance is

(13.33*20)/30 = 8.88 watt