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प्रश्न
What are magnetic field lines?
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उत्तर
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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 is a natural magnet? State two limitations of a natural magnet.
Explain the following :
When two pins are hung by their heads from the same pole of a magnet, their pointed ends moves apart.
Write a note on the 'magnetic field'.
If the key in the arrangement is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are
Can two magnetic lines of force intersect? Justify your answer:
State the inference drawn about the direction of the magnetic field lines on the basis of the following diagrams.
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| Figure 'a' | Figure 'b' |
