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प्रश्न
Select the correct option:
Nickel is a:
पर्याय
ferromagnetic substance
paramagnetic substance
diamagnetic substance
none of these
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उत्तर
ferromagnetic substance
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संबंधित प्रश्न
Draw a diagram to show the magnetic field lines around a bar magnet.
An electron beam enters a magnetic field at right angles to it as shown in the Figure.
The direction of force acting on the electron beam will be:
to the left
to the right
into the page
out of the page
A portable radio has a built-in transformer so that it can work from the mains instead of batteries. Is this a step-up or step-down transformer?
What conclusion is drawn regarding the magnetic field at a point if a compass needle at that point rests in any direction? Give reason for your answer.
In a uniform magnetic field, the field lines are:
Answer the following question.
Draw the pattern of magnetic field lines of
(i) a current-carrying solenoid and
(ii) a bar magnet.
List two distinguishing features between the two fields.
A dry cell can supply a charge of 800 C. If continuous current of 8.0 mA is drawn, calculate the time in which cells will discharge completely.
A magnetic needle is kept in a non-uniform magnetic field. It experiences ______.
The relation between weber and Tesla is ______.
