Question

A bulb is rated 10v. 100m ampere. Calculate its power&resistance. ​

Answer 1

potential difference=10volt

we know that, 1 ampere=1000mA

so,100mA=100/1000mA=0.1A

R=V/I

=10/0.1

=100 ohms.

power=I^2*R

=(0.1)^2*100

=1/100*100

=1 WATT.

HOPE THIS HELPS!!!