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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
Fill in the following blank with suitable words:
Magnetic field lines leave the .......... pole of a bar magnet and enter at its .......... pole.
What is a magnetic field? How can the direction of magnetic field lines at a place be determined?
The magnetic field lines:
(a) intersect at right angles to one another
(b) interest at an angle 45° to each another
(c) do not cross one another
(d) cross at an angle of 60° to one anotherv
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.
Can two magnetic field lines intersect each other? Give reason to your answer.
In following figure, draw at least two magnetic field lines between the two magnets.
(a) 
Inside the magnet, the field lines moves ____________.
Define magnetic field lines of force.
A student fixes a white sheet of paper on a drawing board. He places a bar magnet in the centre and sprinkles some iron filings uniformly around the bar magnet. Then he taps gently and observes that iron filings arrange themselves in a certain pattern.
- Why do iron filings arrange themselves in a particular pattern?
- Which physical quantity is indicated by the pattern of field lines around the bar magnet?
- State any two properties of magnetic field lines.
