(a) Draw the magnetic lines of force due to a circular wire carrying current.

(b) What are the various ways in which the strength of the magnetic field produced by a current-carrying circular coil can be increased ?

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Solution

(b) The strength of the magnetic field produced by a current-carrying circular coil can be increased by the following:

increasing the number of turns of wire in the coil

increasing the current flowing through the coil.

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(a) Draw the magnetic lines of force due to a circular wire carrying current. (b) What are the various ways in which the strength of the magnetic field produced by a current-carrying circular coil can be increased ?

(b) The strength of the magnetic field produced by a current-carrying circular coil can be increased by the following: increasing the number of turns of wire in the coil increasing the current flowing through the coil.

(a) Draw the magnetic lines of force due to a circular wire carrying current.

(b) What are the various ways in which the strength of the magnetic field produced by a current-carrying circular coil can be increased ?

(b) The strength of the magnetic field produced by a current-carrying circular coil can be increased by the following:

increasing the number of turns of wire in the coil

increasing the current flowing through the coil.