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Suppose that a voltage surge produces 140 V for a moment in a 115-V line. What will temporarily be the output of a 100-W light bulb assuming its resistance does not change

Respuesta :

tanisharawat014

The temporarily be the output of a 100-W light bulb is 148 watt.

To find the answer, we need to know about the resistance of the bulb.

What's the mathematical expression of resistance of the bulb in term of power and voltage?

  • Mathematically, power= voltage²/resistance
  • So, resistance= voltage²/power

What's the resistance of the bulb, if 115 volt is applied to 100 watt bulb?

Resistance= 115²/100= 132.25 Ohm

What's the power of the bulb, if 140 volt is applied to it?

Power= voltage²/resistance

= 140²/132.25

= 148watt

Thus, we can conclude that the temporary output of the bulb is 148 watt.

Learn more about the electric power here:

brainly.com/question/13080026

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