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प्रश्न
How is a solenoid prepared?
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उत्तर
A solenoid is prepared by wrapping a coil of many circular turns of insulated copper wire closely in the shape of a cylinder.
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संबंधित प्रश्न
State the direction in which current-carrying freely suspended solenoid rests
Draw a diagram to represent the magnetic field lines along the axis of a current carrying solenoid. Mark arrows to show the direction of current in the solenoid and the direction of magnetic field lines.
What effect will there be on a magnetic compass when it is brought near a current carrying solenoid?
- 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).
Derive the expression for the heat produced due to a current ‘I’ flowing for a time interval ‘t’ through a resistor ‘R’ having a potential difference ‘V’ across its ends. With which name is the relation known? How much heat will an instrument of 12W produce in one minute if it is connected to a battery of 12V?
Sketch the lines of force of the magnetic field of a solenoid. How does its field compare with that of a bar magnet?
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?
A circuit contains a battery, a variable resistor and a solenoid. The figure below shows the magnetic field pattern produced by the current in the solenoid.
- State how the magnetic field pattern indicates regions where the magnetic field is stronger.
- What happens to the magnetic field when the current in the circuit is reversed?
Observe the given figure of a current-carrying solenoid and write the labels of A and B correctly.
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.
