Advertisements
Advertisements
प्रश्न
Why does a current carrying, freely suspended solenoid rest along a particular direction?
Advertisements
उत्तर
A current-carrying freely suspended solenoid acts as a bar magnet, and thus, due to the Earth’s magnetic field, it rests along a particular direction.
APPEARS IN
संबंधित प्रश्न
The following diagram shows a spiral coil wound on a hollow carboard tube AB. A magnetic compass is placed close to it. Current is switched on by closing the key.
- What will be the polarity at the ends A and B?
- How will the compass needle be affected? Give reason.
How is the magnetic field due to a solenoid carrying current affected if a soft iron bar is introduced inside the solenoid?
What is a solenoid?
The adjacent diagram shows a small magnet placed near a solenoid. State whether the magnet is attracted or repelled, as the switch is pressed. Give a reason.
The magnetic field lines outside a bar magnet:
The pattern of the magnetic field produced by the straight current-carrying conducting wire is ____________.
The diagram below shows an insulated copper wire wound around a hollow cardboard cylindrical tube. Answer the questions that follow:
- What are the magnetic poles at A and B when the key K is closed?
- State two ways to increase the strength of the magnetic field in this coil without changing the coil.
- If we place a soft iron bar at the centre of the hollow cardboard and replace the DC source with an AC source then will it attract small iron pins toward itself when the current is flowing through the coil?
How is a solenoid prepared?
Differentiate between a circular coil and a solenoid.
Draw a neat diagram of a solenoid and name its various components.
