Physics, asked by 1stBrainly, 10 months ago

What will happen when a 40 watt-220
volt lamp and 100 watt-220 volt lamp
are connnected in series across 40 volt
supply?

Answers

Answered by ReRepeater
2

TRICK:

As the applied voltage is less than both of them , Neither  a or b will fuse

OR

I1 = P/V = 40/220

I2 = 100/220

R1  = V^2 /P = 220^2 / 40

R2 = 220 ^2 / 100

Current through the circuit

I = 40 /(R1+ R2)

Which will be less than both of the bulbs and thus both will no fuse

Hope you understand

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