Question

UNIFORM AND NON UNIFORM MAGNETIC FIELDS
If the field lines are parallel and equidistant , the field is uniform and if they are
unequally spaced the field is non uniform.
MAGNETIC FIELD DUE TO CURRENT CARRYING CONDUCTOR
Take a long copper wire and connect a battery and key in series Place the wire
over a compass needle and plug the key . It is observed that the compass needle
shows deflection .If the battery connections are reversed, then the direction of
deflection in the compass needle is also reversed.​

Answer 1

Answer:

Explanation:The close continuous curves in a magnetic field are called magnetic lines of force. Curved lines are used to represent a magnetic field, drawn such that the number of lines relates to the magnetic field's strength at a given point and the tangent of any curve at a particular point is along the direction of magnetic force at that point.

The magnetic lines of force are uniform and strong at the center or middle and they diverge as they move towards the ends and the distance between the lines increases. Eventually, the strength of the magnetic field is strong where the lines are closer and they weaken as they closeness decreases. Hence, if the field lines in a magnetic field are parallel and equidistant, the magnetic field is uniform.

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Answer 2

Explanation:

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