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प्रश्न
How will you test whether a given rod is made of iron or copper?
[Hint : Iron rod gets magnetised when placed near a bar magnet by magnetic induction, while copper rod does not get magnetised]
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उत्तर
Iron rod is magnetized when placed near a bar magnet by magnetic induction, while copper rod is not magnetized.
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संबंधित प्रश्न
Copy the figure below which shows a plotting compass and a magnet. Label the N pole of the magnet and draw field line on which the compass lines
The wire in Figure below is being moved downwards through the magnetic field so as to produce induced current.
(a) moving the wire at a higher speed?
(b) moving the wire upwards rather than downwards?
(c) using a stronger magnet?
(d) holding the wire still in the magnetic field?
(e) moving the wire parallel to the magnetic field lines?
Explain the following :
Several soft iron pins can cling, one below the other, from the pole of a magnet.
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) 
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.
State briefly the modern views on magnetism.
Describe two methods of determining the arrangement of the lines of force in the field close to a bar magnet. Give a brief explanation of each method.
Draw diagram showing the arrangement of the lines of force for a single magnet.
