Physics, asked by Deepvirk, 1 year ago

answer this fast Plz
a compass needle is placed near a current carrying wire. state ur observation for following cases and give reason also
1) magnitude of the electric current in the wire is increased
2) the compass needle is displayed away from the wire

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Answered by Anuj790
1
(a) Deflection of compass needle increases : Magnetic field strength is directly proportional to the amount of current. 
(b) Deflection of compass needle decreases :Magnetic field strength is inversely proportional to 
the distance from wire.
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