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A magnet is moved in and out of a coil of wire connected to a high-resistance voltmeter. If the number of coils doubles, the induced voltage
A. Doubles
B. Is the same
C. Halves
D. Quadruples ​

Respuesta :

Lanuel

Answer:

A. Doubles.

Explanation:

In an electromagnetic device such as a generator, when a wire (conductor) moves through the magnetic field between the South and North poles of a magnet, an electromotive force (e.m.f) is usually induced across a wire

The mode of operation of a generator is that a metal core with copper tightly wound to it (conductor coil) rotates rapidly between the two (2) poles of a horseshoe magnet type. Thus when the conductor coil rotates rapidly, it cuts the magnetic field existing between the poles of the horseshoe magnet and then induces the flow of current.

When a high-resistance voltmeter is connected to an electric circuit, a deflection will arise due to the flow of electricity. Moving the magnet towards the coil of wire will cause the needle of the high-resistance voltmeter to move in one direction. Also, as the magnet is moved out from the coil of wire, the needle of the high-resistance voltmeter moves in the opposite direction.

In this scenario, a magnet is moved in and out of a coil of wire connected to a high-resistance voltmeter. If the number of coils doubles, the induced voltage doubles because the number of turns (voltage) in the primary winding is directly proportional to the number of turns (voltage) in the secondary winding.

If the number of coils doubles, the induced voltage will be doubled. Option A is correct. Faraday's law of induction is used to describe the induced voltage.

What is induced voltage?

The induced voltage is a result of electromagnetic induction. The procedure of producing emf (induced voltage) by exposing a conductor to a magnetic field is known as electromagnetic induction

A magnet is moved in and out of a wire coil connected to a high-resistance voltmeter in this scenario.

Because the number of turns (voltage) in the primary winding is directly proportional to the number of turns (voltage) in the secondary winding, doubling the number of coils doubles the induced voltage.

If the number of coils doubles, the induced voltage will be  Doubles.

Hence option A is correct.

To learn more about the induced voltage refer to the link;

https://brainly.com/question/19482771

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