Answer :
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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