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प्रश्न
What effect will there be on a magnetic compass when it is brought near a current carrying solenoid?
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उत्तर
The needle of the compass will rest in the direction of magnetic field due to the solenoid at that point.
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संबंधित प्रश्न
The adjacent diagram shows a small magnet placed near a solenoid AB. Current is switched on in the solenoid by pressing the key K.
- State the polarity at the ends A and B.
- Will the magnet be attracted or repelled? Give a reason for your answer.
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?
A current carrying solenoid behaves like a ______.
- What name is given to a cylindrical coil of diameter less than its length?
- If a piece of soft iron is placed inside the coil mentioned in part (a) and current is passed in the coil from a battery, what name is then given to the device so obtained?
- Give one use of the device mentioned in part (b).
The magnetic field lines outside a bar magnet:
For a current in a long straight solenoid, N-pole and S-pole are created at the two ends. Among the following statements, the incorrect statement is ____________.
What does the divergence of magnetic field lines near the ends of a current carrying straight solenoid indicate?
When does a solenoid behave as a magnet? Draw the pattern of the magnetic field produced inside it showing the directions of the magnetic field lines.
How is a solenoid prepared?
