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leonid [27]
3 years ago
8

An LED lightbulb has an efficiency of 11,5% and a power of 10 W. How much

Biology
1 answer:
Lelechka [254]3 years ago
5 0

The light bulb produces 1.15 J  energy in 1 second.

<u>Explanation:</u>

Efficiency of an electric appliance is defined as the ratio of output power to the input power. In a 100% efficient appliance all of the input power will be converted to output power. In the given question  it is given that

input power= 10W  

efficiency= 11.5%

(output power)/(input power)=efficiency  

output power = input power * efficiency

=10 \times (11.5/100)=1.15W

Now we have to calculate the energy produced by the light bulb in 1 second

energy=power \times time

=1.15 \times 1

=1.15J

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