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Question
State two ways by which the magnetic field due to a current carrying solenoid can be made stronger.
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Solution
The magnetic field due to a solenoid can be made stronger by using:
- By increasing the number of turns of winding in the solenoid.
- By increasing the current through the solenoid.
- By placing a soft iron core along the axis of solenoid.
RELATED QUESTIONS
State the direction in which current-carrying freely suspended solenoid rests
A current carrying solenoid when freely suspended, it always rests in ______ direction.
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- 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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The factors on which one magnetic field strength is produced by current-carrying solenoids depends are
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Ansari Sir was demonstrating an experiment in his class with the setup as shown in the figure below.
A magnet is attached to a spring. The magnet can go in and out of the stationary coil. He lifted the Magnet and released it to make it oscillate through the coil.
Based on your understanding of the phenomenon, answer the following question.
Is there any difference in the observations in the galvanometer when the Magnet swings in and then out of the stationary coil? Justify your answer.
For the current carrying solenoid as shown, draw magnetic field lines and give reason to explain that out of the three points A, B and C, at which point the field strength is maximum and at which point it is minimum?
Refer to the image below and state how the magnetic field pattern indicates regions where the magnetic field is stronger outside the magnet. What happens to the magnetic field when the current in the circuit is reversed?
