Question

please answer these questions..

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Answer 1

Answer:

case 1= B is answer

case 2= B is answer

case 3=B is answer

Explanation:

electromagnet is also known as artificial or man made magnet

• the more the turns the more the power
• the more the power supplied the more magnetic power
• metals are conductor than wood

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Answer 2

$\large \underline \mathsf \green{Question:-}$

Define an electromagnet.

$\large \underline \mathsf \green{Answer:-}$

An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of anelectromagnet can easily be changed by changing the amount of electric current that flows through it. The poles of an electromagnet can even be reversed by reversing the flow of electricity.

$\large \underline \mathsf \green{Question:-}$

Indentify in Which of the following three cases ,will the electromagnet have a greater number of paper clips attached to it,A or B.Justify Your choice with proper reasons.

$\large \underline \mathsf \green{Answer:-}$

Case 3.

A $-$Pencil as the core.

B$-$Iron nail as the core.

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