Draw the pattern of lines of force due to a magnetic field through and around a current carrying loop of wire. How does the strength of magnetic field produced at the centre of the loop be affected if:- (a) strength of the current passing through it is doubled? (b) the radius of the loop is reduced to half the original value? (c) the radius of the loop is doubled its original value and at the same time current passing through it is also doubled?
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Very less points...Ok I will answer in a few minutes.Let me solve it first
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