How does the strength of the magnetic field at the centre of a current carrying circular coil depend on the
(i) radim of the coil,
(ii) number of turns in the coil, and
(iii) strength of the current flowing in the coil ?

Explanation

(i) inversely proportional, more radius less strong magnetic field.
(ii) Oil.ectly proportional, more turns more strong magnetic field.
(lii)Directly proportional, more strength of current more strong magnetic field.