Are the magnetic field lines closed? Explain.
Important Questions on Electromagnetism
See figure, magnetic lines are shown. What is the direction of the current flowing through the wire?
A bar magnet with North Pole facing towards a coil moves as shown in figure. What happens to the magnetic flux passing through the coil?
A coil is kept perpendicular to the page. At P, current flows into the page and at Q it comes out of the page as shown in figure. What is the direction of magnetic field due to the coil?
The direction of current flowing in a coil is shown in figure. What type of magnetic pole is formed at the face that has flow of current as shown in figure?
Symbol ‘X’ indicates the direction of a magnetic field into the page. A straight long wire carrying current along its length is kept perpendicular to the magnetic field. What is the magnitude of force experienced by the wire? In what direction does it act?
