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Question

Choose the correct statement/statements from the following options regarding the magnetic field lines of an electromagnet.


A

The magnetic field lines do not form closed lines.

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B

The magnetic field lines are closed lines.

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C

If magnetic field lines are parallel and equidistant, they represent zero field strength.

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D

Magnetic field lines do not intersect each other.

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Solution

The correct options are
B

The magnetic field lines are closed lines.


D

Magnetic field lines do not intersect each other.


If the magnetic field lines are parallel and equidistant, they represent a uniform magnetic field and not a zero field strength. Also, magnetic field lines form a closed loop as shown in the figure below. Therefore options (A) and (C) are the incorrect statements and the two options are correct.


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