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प्रश्न
State condition when magnitude of force on a current carrying conductor placed in a magnetic field is zero?
उत्तर
When current in the conductor is in the direction of magnetic field force will be zero.
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संबंधित प्रश्न
When is the force experienced by a current-carrying conductor placed in a magnetic field largest?
State the form of magnetic field lines around a straight current-carrying conductor.
The front face of a circular wire carrying current behaves like a north pole. The direction of current in this face of circular wire is:
(a) clockwise
(b) downwards
(c) anticlockwise
(d) upwards
A coil ABCD mounted on an axle is placed between the poles N and S of a permanent magnet as shown in Figure.
- In which direction will the coil begin to rotate when current is passed through the coil in direction ABCD by connecting a battery at the ends A and D of the coil?
- Why is a commutator necessary for continuous rotation of the coil?
- Complete the diagram with commutator, etc. for the flow of current in the coil?
A flat coil ABCD is freely suspended between the pole of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field.
Name an instrument which makes use of the principle stated above.
The north pole of Earth’s magnet is in the ____________.
A current flows in a wire running between the S and N poles of a magnet lying horizontally as shown in the figure below:
The force on the wire due to the magnet is directed ____________.
When current is parallel to a magnetic field, then force experience by the current-carrying conductor placed in a uniform magnetic field is ____________.
Which of the following factors affect the strength of force experience by current-carrying conduct in a uniform magnetic field?
