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प्रश्न
List three ways in which the magnetic field strength of a current-carrying solenoid can be increased?
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उत्तर
Ways to increase the magnetic field strength of a current-carrying solenoid:
- By increasing the number of turns in the solenoid.
- By increasing the flow of current passing through the solenoid.
- By using a soft iron rod as a core in the solenoid.
संबंधित प्रश्न
What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
Draw the magnetic lines of force due to a circular wire carrying current.
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 current-carrying conductor is placed perpendicularly in a magnetic field. Name the rule which can be used to find the direction of force acting on the conductor.
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.
When will coil come to rest?
State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be Zero.
The shape of the magnetic field lines produced by a current-carrying conductor is ____________.
A magnetic field directed in north direction acts on an electron moving in east direction. The magnetic force on the electron will act ____________.
A simple motor is made in a school laboratory. A coil of wire is mounted on an axle between the poles of a horseshoe magnet, as illustrated.
In the example above, coil ABCD is horizontal and the battery is connected as shown.
- For this position, state the direction of the force on the arm AB.
- Why does the current in the arm BC not contribute to the turning force on the coil?
What do you know about Michael Faraday?
