Question

If two resistance 2 ohm and 6 ohm connected in series. And a 12 v battery connected across it. Find the total power given by the battery

Answer 1

R1=2ohm

R2=6ohm

Since the connection is in series

Rs=R1+R2

= 2+6

=8ohm

Then V=12v

We have P=VI

and I=V/R

Then P=V×V/R

=12×12/8

=144/8

=18w