Advertisements
Advertisements
प्रश्न
Repulsion is a surer test of magnetic condition of a body than attraction. Explain.
Advertisements
उत्तर
Repulsion is the surest test of magnetism because the attraction can be caused between two unlike poles of the two magnets or between the magnet and magnetic substance such as iron, nickel etc. But repulsion is caused when two similar poles approach each other.
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable words:
Magnetic field lines leave the .......... pole of a bar magnet and enter at its .......... pole.
Copy the figure below which shows a plotting compass and a magnet. Label the N pole of the magnet and draw field line on which the compass lines
Define the isoclinic line.
State briefly the molecular theory of magnetism.
Complete the following diagram of magnets to show the lines of force.
Write the properties of magnetic lines of force.
Magnetic lines of force never ______ each other.
______ is the number of magnetic field lines passing through a given area.
A closely wounded circular coil of radius 5 cm produces a magnetic field of 37.68 × 10-4 T at its center. The current through the coil is ______ A. [Given, number of turns in the coil is 100 and π = 3.14)
