How will the magnetic field produced in a current-carrying circular coil change if we increase the:
$(i)$ value of current flowing through it?
$(ii)$ distance of point $P$ from the coil?
$(iii)$ number of turns of the coil?

(N/A) $(i)$ The magnetic field is directly proportional to the current flowing through the coil $(B \propto I)$. Therefore,increasing the current will increase the magnetic field.
$(ii)$ The magnetic field is inversely proportional to the distance from the coil. As the distance of point $P$ from the coil increases,the magnetic field at that point will decrease.
$(iii)$ The magnetic field is directly proportional to the number of turns in the coil $(B \propto N)$. Therefore,increasing the number of turns will increase the magnetic field.