Question

A student performs an experiment to study the magnetic effect of current around a current carrying straight conductor. He reports that the direction of deflection of the north pole of a compass needle kept at a given point near the conductor remains unaffected even when the terminals of the battery sending current in the wire are interchanged. For a given battery, the degree of deflection of a N-pole decreases when the compass is kept at a point farther away from the conductor. Which of the above observations of the student is incorrect and why ki ji​

Answer 1

Answer:

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Explanation:

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