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posledela
2 years ago
9

How Does Earth's gravitational force field act on objects that aren't touching Earth's surface?

Physics
1 answer:
natali 33 [55]2 years ago
8 0

Answer:

Explanation:

Gravity is a field force since the earth does not have to actually “touch” an object to pull it toward the earth. A magnetic force is a field force that attracts or repels another magnet. Likewise, electric charges cause attracting or repelling forces without actual contact between the charges

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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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Answer:

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} }

For finding number of turns in secondary coil,

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

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

     N_{S} = 4000

Therefore, the number of turns in secondary coil is 4000

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2 years ago
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Explanation:

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