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Question
When current passes through the circuit a compass needle rests in which direction (with respect to the Earth)?
When current passes through the circuit a compass needle rests in which direction (with respect to the Earth)?
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Solution
The correct option is A South-north
The earth acts like a huge magnet. Thus in the absence of electric current a compass needle always comes to rest in Earths North-south direction. However, when current passes through the circuit the needle comes to rests in the direction opposite to the magnetic field of Earth i.e. South-North direction.
The earth acts like a huge magnet. Thus in the absence of electric current a compass needle always comes to rest in Earths North-south direction. However, when current passes through the circuit the needle comes to rests in the direction opposite to the magnetic field of Earth i.e. South-North direction.
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