Question

A 100 watt electric bulb is connected to a 250 volt supply.the current in circuit is ?

Answer 1

Power (P) = 100 Watt.

Voltage (V) = 250 Volts.

So, Current (I) = ?

Now,

Because, P = VI

So, I = P / V

I = 100/250

I = 0.4 Ampere...●

Thus, Current in the Circuit = I = 0.4 Ampere...●

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Hope it was helpful