Advertisements
Advertisements
प्रश्न
A small iron bar is kept near the north pole of a bar magnet. How does the iron bar acquire magnetism? Draw a diagram to show the polarity on the iron bar. What will happen if the magnet is removed?
उत्तर
The iron bar acquires magnetism due to magnetic induction.
If the magnet is removed, the iron bar loses its magnetism.
APPEARS IN
संबंधित प्रश्न
How are the north and south poles of a magnet located? Explain.
A small magnet is suspended by a silk thread from a rigid support such that the magnet can freely swing. How will it rest? Draw a diagram to show it.
Two like magnetic poles:
A work of 25 J and 30 J is done when 5 C charge is moved first to point A and then to point B from infinity. Calculate the potential difference between points A and B.
Define the magnetic field.
Define the declination.
Define Magnetic equator.
Define the terms magnetic declination and dip with reference to a freely suspended magnet.
A freely suspended bar magnet is always pointing along the ________ north-south direction.
Consider the statement given below and choose the correct option.
Assertion: The Earth’s magnetic field is due to iron present in its core.
Reason: At a high temperature a magnet loses its magnetic property or magnetism.