a lamp rated 100w at 220v is connected to the mains electric supply what amount of current is drawn from the supply line if the voltage is 220v
Answers
Answered by
5
use formula first p= v× t
p her means power (w)
v her means volt ( v)
t her means time (t)
100 = ( 220 )² × T
T = ( 220 )²/ 100
T = 48400/ 100
T = 484
p her means power (w)
v her means volt ( v)
t her means time (t)
100 = ( 220 )² × T
T = ( 220 )²/ 100
T = 48400/ 100
T = 484
Similar questions