Question

1) What will be the resistance of the filament
of a bulb of 220v- 60w when it is
attached to
220v main line. Calculate
the
flowing through it.
current flowing​

Answer 1

Explanation:

Given :

V=220v

P=60w

solution :

P=V2/R

60=220×220/R

R=220×220/60

R=22×220/6

R=11×220/3

R=2420/3