Advertisements
Advertisements
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 diagram in figure shows a small magnet placed near a solenoid AB with its north pole N near the end A. 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
उत्तर
- A - North Pole, B - South Pole.
- The magnet will be repelled because the end of the solenoid near the north pole of the magnet becomes the north pole as the current at this face is anticlockwise and the two like poles repel.
APPEARS IN
संबंधित प्रश्न
How does a solenoid behave like a magnet? Can you determine the north and south poles of a current-carrying solenoid with the help of a bar magnet? Explain.
State the direction in which current-carrying freely suspended solenoid rests
A current carrying solenoid when freely suspended, it always rests in ______ direction.
What is a 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 factors on which one magnetic field strength is produced by current-carrying solenoids depends are
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?
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.
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?
Differentiate between a circular coil and a solenoid.
