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प्रश्न
What are the properties of a magnet?
उत्तर
Following are the properties of the magnet:
(i) Like poles of a magnet repel each other while unlike poles attract.
(ii) Magnet have an attractive property means it attract the magnetic material towards it.
(iii) Magnet have the directive property means when it is held freely, it always points towards north-south direction.
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संबंधित प्रश्न
Which of the following statements is incorrect regarding magnetic field lines?
(a) The direction of magnetic field at a point is taken to be the direction in which the north pole a magnetic compass needle points.
(b) Magnetic field lines are closed curves.
(c) If magnetic field lines are parallel and equidistant, they represent zero field strength.
(d) Relative strength of magnetic field is shown by the degree of closeness of the field lines.
In a uniform magnetic field, the field lines are:
A battery can supply a charge of 25 × 104 C. If the current is drawn from battery at the rate of 2.5 A, calculate the time in which battery will discharge completely.
Select the correct option:
The magnetic strength of a bar magnet is:
Define the isoclinic line.
______ is the number of magnetic field lines passing through a given area.
Can two magnetic lines of force intersect? Justify your answer:
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.
