a) Current carrying wires produce magnetic field.
b) Electric changes in motion produce magnetic fields.
Which is / are correct statements?

Electric current, if very weak, does not produce magnetic field.

Does a current carrying circular coil produce uniform magnetic field?

Which of the following is appreciable in the making of a motor? Why? a) A current carrying wire is kept in a uniform magnetic field. b) A current carrying coil is kept in a uniform magnetic field. c) A negative charge is kept in a uniform magnetic field.

(A) : A current carrying conductor produces only an electric field. (R) : Electrons in motion in a current carrying wire give rise to a electric field

(A) : A current carrying conductor produces only an electric field. (R) : Electrons in motion in a current carrying wire give rise to a electric field