You want to reduce your energy bills. A.) calculate the power of a light bulb that transfers 6000J every minute. B.) calcula

Question

You want to reduce your energy bills.
A.) calculate the power of a light bulb that transfers 6000J every minute.
B.) calculates the power of a different bulb which has a current of 0.05 A through it when there is a potential difference of 240 V through it.
C.) both bulbs are equally bright. Indicate and explain which bulb you should use.

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Vodka 5 years 2021-08-30T03:22:46+00:00 1 Answers 17 views 0

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  1. kiet
    0
    2021-08-30T03:24:02+00:00
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    Answer:

    A. 100 Watts

    B. 12 Watts

    C. the first bulb

    Explanation:

    A. The formula for power is Work done/time

    6000J/60seconds = 100J/s or 100W

    B. Another formula for power is Current * Voltage

    0.05*240 = 12W

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