how will the magnetic field produced in a current carrying circulars coli changes if we increase the
a) value of current flowing through it
b) distance of point p from the coil
c) numbers of turns of the coli.
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If current is increased then deflection of needle of magnetic compass placed inside wire also increases. Strength of magnetic field is directly proportional to current. Strength of magnetic field is inversely proportional to radius of circular wire
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