Question

power of one bulb is 50W and another bulb power is 60W are placed in circuit with parallel connection with 220V.Find current in main circuit?​

Answer 1

let P¹ = 50W

and P²=60 W

We have,

P = V I

Thus, I = P / V

I¹ = 50/220

and I²= 60/220

I = I¹ + I²

= 50/220 + 60/220

= 110/220

= 1/2

= 0.5 Ampere