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  • A compass needle is placed near a current carrying straight conductor. State your observation for the following cases and give reasons for the same in each case : (a) Magnitude of electric current is increased. (b) The compass needl

A compass needle is placed near a current carrying straight conductor. State your observation for the following cases and give reasons for the same in each case :

(a) Magnitude of electric current is increased.

(b) The compass needle is displaced away from the conductor.

 

 

 

 
 
 
 
 

Answers (1)

(a) If magnitude of electric current is increased than more deflection in compass needle, because magnetic field is increased.

        [ Magnetic field strength \propto amount of current ]

(b) Deflection of the compass needle decreases because magnetic field strength is decreased.

        [Magnetic field strength is inversely proportional to the distance from wire ]

        

Posted by

Sumit Saini

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