3 years ago

you can find the power of an electric appliance by measuring the energy it transfers in a certain what?

Physics

1 answer:

ki77a [65]3 years ago

7 0

Why is school so hard

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Humans invented agriculture between 7,000 and 10,000 years ago, during the Neolithic era, or the New Stone Age. There were eight Neolithic crops: emmer wheat, einkorn wheat, peas, lentils, bitter vetch, hulled barley, chickpeas, and flax.

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A transformer is intended to decrease the value of the alternating current from 500 amperes to 25 amperes. The primary coil cont

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The number of turns in secondary coil is 4000

Explanation:

Given:

Current in primary coil $I_{P} = 500$ A

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In case of transformer the relation between current and number of turns is given by,

$\frac{N_{S} }{N_{P} } = \frac{I_{P} }{I_{S} }$

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$N_{S} = \frac{I_{P} }{I_{S} } N_{P}$

$N_{S} = \frac{500}{25} \times 200$

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