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lana [24]
3 years ago
12

Watt-hours is a measure of energy, just like kilowatt-hours. How can you convert this to Joules?

Physics
1 answer:
satela [25.4K]3 years ago
3 0

Work with your units:

1 watt-hour = 1 (joule/second) · (hour) = 1 (joule-hour / second)

(1 joule-hour/sec) · (3600 sec/hour) = 3600 joules

So 1 watt-hour = 3,600 joules

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How much voltage is in the primary coil if there are 3200 windings in the
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Answer:

Voltage in primary coil is 3.91 V

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An electric car is being designed to have an average power output of 4,600 W for 2 h before needing to be recharged. (Assume the
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Answer:

a)3312 x 10⁴ J

b)I = 57.5 A

c)9200 W

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Given that

P =4600 W

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1 W = 1 J/s

a)

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b)

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c)

The energy supplied = 4600 x 2 = 9200 W

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