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10th CBSE
IMPORTANT
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The most suitable material for making the core of an electromagnet is:

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Important Questions on Magnetic Effect of Electric Current

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10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 32
The magnetic effect of current was discovered by:
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 33
A soft iron bar is inserted inside a current-carrying solenoid. The magnetic field inside the solenoid:
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 34
The magnetic field lines in the middle of the current-carrying solenoid are:
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Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 35
The front face of a circular wire carrying current behaves like a north pole. The direction of the current in this face of the circular wire is:
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10th CBSE
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Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Multiple Choice Questions (MCQs)>Q 36
The back face of a circular loop of wire is found to be south magnetic pole. The direction of the current in this face of the circular loop of wire will be: 
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Questions Based on High Order Thinking Skills (HOTS)>Q 37

In the straight wire A, a current is flowing in the vertically downward direction whereas in wire B, the current is flowing in the vertically upward direction. What is the direction of the magnetic field in wire A?

(Choose from the following: Clockwise/ Anti-clockwise)

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10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Questions Based on High Order Thinking Skills (HOTS)>Q 37
In the straight wire A, current is flowing in the vertically downward direction whereas in wire B the current is flowing in the vertically upward direction. What is the direction of magnetic field: in wire B? Name the rule which you have used to get the answer.
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Questions Based on High Order Thinking Skills (HOTS)>Q 38

The figure shows a solenoid wound on a core of soft iron. Will the end A be a N pole or S pole when the current flows in the direction shown? 

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