When a solenoid that is carrying current is freely suspended it comes to rest along a particular direction. Why does this happen ?
A
Because it is suspended in air
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B
Because it aligns itself along Earth's magnetic field
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C
Because current is passing through it
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D
Because it is a coil
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Solution
The correct option is B Because it aligns itself along Earth's magnetic field A solenoid behaves like a bar magnet. When it is suspended freely, it interacts with the Earth's magnetic field and aligns itself along the north-south direction.