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प्रश्न
- 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).
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उत्तर
- Solenoid is a cylindrical coil of diameter less than its length.
- The device so obtained is electromagnet.
- It is used in electric bell.
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संबंधित प्रश्न
Why does a current carrying, freely suspended solenoid rest along a particular direction?
A current carrying solenoid when freely suspended, it always rests in ______ direction.
Draw magnetic field lines in and around a current-carrying straight solenoid.
Sketch the lines of force of the magnetic field of a solenoid. How does its field compare with that of a bar magnet?
The pattern of the magnetic field produced by the straight current-carrying conducting wire is ____________.
The factors on which one magnetic field strength is produced by current-carrying solenoids depends are
The diagram below shows a magnet moved near a coil along its axis. Which of the diagram shows correct flow of current during this motion?
What does the divergence of magnetic field lines near the ends of a current carrying straight solenoid indicate?
Observe the given figure of a current-carrying solenoid and write the labels of A and B correctly.
Current is flowing through a coil as shown in the figure. Which one of the given figures will correctly depict the magnetic polarity and the direction of the lines of force along the axis of the coil?
