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प्रश्न
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संबंधित प्रश्न
The strength of the magnetic field between the poles of an electromagnet would be unchanged if:
A current flows downwards in a wire that passes vertically through a table top. Will the magnetic field lines around it go clockwise or anticlockwise when viewed from above the table?
Explain the following :
The north end of a freely suspended magnetic needle gets attracted towards a piece of soft iron placed a little distance away from the needle.
In a uniform magnetic field, the field lines are:
A charge of 5000 C flows through an electric circuit in 2 hours and 30 minutes. Calculate the magnitude of current in a circuit.
Complete the following diagram of magnets to show the lines of force.
______ is the number of magnetic field lines passing through a given area.
Assertion (A): Magnetic field lines never intersect each other.
Reason (R): If they intersect, then at the point of intersection, the compass needle would point towards two directions, which is not possible.
