Advertisements
Advertisements
Question
If you hold a coil of wire next to a magnet, no current will flow in the coil. What else is needed to induce a current?
Solution
A relative motion between the coil of the wire and the magnet is needed to induce current
APPEARS IN
RELATED QUESTIONS
A thick wire is hanging form a wooden table. An anticlockwise magnetic field is to be produced around the wire by passing current through this wire by using a battery. Which terminal of the battery should be connected to the:
(a) top end of wire?
(b) bottom end of wire?
Give reason for your choice.
Explain why iron filings which are sprinkled on a sheet of cardboard placed over a bar magnet take up a definite pattern when cardboard is slightly tapped.
In following figure, draw at least two magnetic field lines between the two magnets.
(b)
Figure. shows a bar magnet placed on the table top with its north pole pointing towards south. The arrow shows the north-south direction. There are no other magnets or magnetic materials nearby.
What is the magnitude of the magnetic field at each neutral point? Give a reason for your answer.
Complete the following diagram of magnets to show the lines of force.
Complete the following diagram of magnets to show the lines of force.
The relative strength of the magnetic field at a point in the space surrounding the magnet is shown by the ____________.
Write the properties of magnetic lines of force.
The magnetic field lines are stronger near the ______ and it diminishes as you go away from it.
When the conductor is perpendicular to the magnetic field, the force will be the ______, When it is parallel to the magnetic field, the force will be ______.