(c) When a straight coil and a magnet are moved relative to each other, a current is induced in the coil. This phenomenon is known as electromagnetic induction.
(c) When a straight coil and a magnet are moved relative to each other, a current is induced in the coil. This phenomenon is known as electromagnetic induction.
(c) At the time of short circuit the current increase heavily, when two naked wires of an electric touch each other the amount of current that is flowing in the curcuit increase.
(c) At the time of short circuit the current increase heavily, when two naked wires of an electric touch each other the amount of current that is flowing in the curcuit increase.
Which of the following correctly describes the magnetic field near a long straight wire?
(d) The magnetic field lines, produced around a straight current-carrying conductor, are concentric circles. Their centres lie on the wire.
(d) The magnetic field lines, produced around a straight current-carrying conductor, are concentric circles. Their centres lie on the wire.
See lessThe phenomenon of electromagnetic induction is
(c) When a straight coil and a magnet are moved relative to each other, a current is induced in the coil. This phenomenon is known as electromagnetic induction.
(c) When a straight coil and a magnet are moved relative to each other, a current is induced in the coil. This phenomenon is known as electromagnetic induction.
See lessThe device used for producing electric current is called a
(a) Generator is the device used to produce electric current.
(a) Generator is the device used to produce electric current.
See lessThe essential difference between an AC generator and a DC generator is that
(d) The main difference is an AC generator has two rings called slip rings. A DC generator has two half rings called commutator.
(d) The main difference is an AC generator has two rings called slip rings. A DC generator has two half rings called commutator.
See lessAt the time of short circuit, the current in the circuit
(c) At the time of short circuit the current increase heavily, when two naked wires of an electric touch each other the amount of current that is flowing in the curcuit increase.
(c) At the time of short circuit the current increase heavily, when two naked wires of an electric touch each other the amount of current that is flowing in the curcuit increase.
See less