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What change in the deflection of the compass needle placed at a point near current carrying straight conductor

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asked Jan 23, 2018 in Physics by Kundan kumar (49,132 points) ● 34 ● 381 ● 1017

What change in the deflection of the compass needle placed at a point near current carrying straight conductor shall be observed if the (a) current through the conductor is increased? (b) direction of current in the conductor is reversed? (c) compass is moved away from the conductor?

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answered Jan 23, 2018 by Vikash Kumar (144,729 points) ● 8 ● 11 ● 21
selected Jan 23, 2018 by Kundan kumar
 
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(a) Deflection increases.
(b) Direction of deflection is reversed.
(c) Deflection decreases.

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