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प्रश्न
Explain the following :
When two pins are hung by their heads from the same pole of a magnet, their pointed ends moves apart.
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उत्तर
When two pins are hung by their heads from the same pole of a magnet, they acquire same polarity. Because like poles repel each other, their pointed ends move apart.
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संबंधित प्रश्न
The shape of the earth's magnetic field resembles that of an imaginary:
(a) U-shaped magnet
(b) Straight conductor carrying current
(c) Current-carrying circular coil
(d) Bar magnet
Fill in the following blank with suitable words:
The lines of ........... round a straight current-carrying conductor are in the shape of ...........
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?
In following figure, draw at least two magnetic field lines between the two magnets.
(a) 
In following figure, draw at least two magnetic field lines between the two magnets.
(b) 
Draw the pattern of magnetic field lines near a bar magnet placed with its North Pole pointing towards the geographic North. Indicate the position of neutral points by marking X.
Figure. shows a bar magnet placed on the table top with its north pole pointing towards south. The arrow shows the north-south direction. There are no other magnets or magnetic materials nearby.
What is the magnitude of the magnetic field at each neutral point? Give a reason for your answer.
Define the isoclinic line.
Draw diagram showing the arrangement of the lines of force for a piece of soft iron laid in line with the magnetic field.
