Write the difference between electric field lines and magnetic field lines.
Two like magnetic poles of strength $ 10$ and $40$ $ SI$ units are separated by a distance $30 \,cm$. The intensity of magnetic field is zero on the line joining them
A bar magnet is cut into two equal parts then which of the following quantity may change
$(a)$ Intensity of magnetization
$(b)$ Pole strength
$(c)$ Magnetic moment
Draw field lines on a bar magnet, a current carrying finite solenoid and electric dipole.
What happens when the small bar magnet kept on the glass and iron filings sprinkled on glass ?