Advertisements
Advertisements
प्रश्न
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.
उत्तर
- When the magnet moves into the coil, the ammeter shows a momentary deflection towards one side saying left.
- When the magnet moves out of the coil, the ammeter shows a momentary deflection now towards right.
- This is due to changing magnetic field/flux associated with the coil as the magnet moves in and out.
- Alternatively, the flux increases when the magnet goes in and it decreases when the magnet goes out.
APPEARS IN
संबंधित प्रश्न
State the direction in which current-carrying freely suspended solenoid rests
The figure shows a solenoid wound on a core of soft iron. Will the end A be a N pole or S pole when the current flows in the direction shown?
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.
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.
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 ______.
Sketch the lines of force of the magnetic field of a solenoid. How does its field compare with that of a bar magnet?
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.
Differentiate between a circular coil and a solenoid.
