EASY
10th CBSE
IMPORTANT
Earn 100

Explain why an electromagnet is called a temporary magnet.

Important Questions on Magnetic Effect of Electric Current

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Long Answer Type Questions>Q 23
Explain why the core of an electromagnet should be of soft iron and not of steel.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Long Answer Type Questions>Q 23
State the factors on which the strength of an electromagnet depends. How does it depend on these factors?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Long Answer Type Questions>Q 23
Write some of the important uses of electromagnets.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 24
The strength of the magnetic field between the poles of an electromagnet would be unchanged if:
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 25

The diagram given below represents magnetic field caused by a current-carrying conductor which is:

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EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 26
The magnetic field inside a long straight solenoid carrying current:
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 27
Which of the following correctly describes the magnetic field near a long straight wire?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 28
The north-south polarities of an electromagnet can be found easily by using: