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प्रश्न
Select the correct option:
Nickel is a:
विकल्प
ferromagnetic substance
paramagnetic substance
diamagnetic substance
none of these
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उत्तर
ferromagnetic substance
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संबंधित प्रश्न
Explain why, two magnetic field lines of not intersect each other.
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?
State four properties of magnetic field lines.
Sketch four magnetic field lines as obtained in a limited space on a horizontal plane in the earth's magnetic field alone.
Write a note on the 'magnetic field'.
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.
The magnetic field lines always begin from ____________.
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)
