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xxMikexx [17]
2 years ago
15

What role does voltage play in the formation or use of an electromagnet?

Physics
2 answers:
12345 [234]2 years ago
7 0

Answer and explanation;

-Voltage overcomes the resistance of the electromagnet winding to force a current through that resistance. The field strength is proportional to the coil current. More voltage pushes more current.

-There is also a time component of this process, with voltage being needed to build up the magnetic field in a certain time. More voltage builds up the current faster, as well as forcing it to a higher final value.

-When the electromagnet are wound with superconducting wire (with zero resistance) then it would take no voltage to keep current passing through the winding and once it was built up, you could just short the ends together and the current would keep going.

Dafna11 [192]2 years ago
3 0
<span>Voltage overcomes the resistance of the electromagnet winding to force a current through that resistance. The field strength is proportional to the coil current. More voltage pushes more current. More voltage builds up the current faster, as well as forcing it to a higher final value. </span>
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the law of reflection states that the angle of incidence is equal to the angle of reflection. true or false.
mina [271]
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Answer:

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Katen [24]

Answer and Explanation:

The main difference between monopolistic competition and perfect competitive market are given bellow

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2 years ago
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3 years ago
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Yuki888 [10]

Electric field is defined as force per unit charge.

So it is given by

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now we can find electric field by

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