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प्रश्न
Fill in the following blank with suitable words:
The lines of ........... round a straight current-carrying conductor are in the shape of ...........
उत्तर
The lines of magnetic field round a straight current-carrying conductor are in the shape of concentric circles.
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संबंधित प्रश्न
A strong bar magnet is placed vertically above a horizontal wooden board. The magnetic lines of force will be:
(a) only in horizontal plane around the magnet
(b) only in vertical plane around the magnet
(c) in horizontal as well as in vertical planes around the magnet
(d) in all the planes around the magnet
In the straight wire A, current is flowing in the vertically downwards direction whereas in wire B the current is flowing in the vertically upward direction. What is the direction of magnetic field:
(a) in wire A?
(b) in wire B?
Name the rule which you have used to get the answer.
In following figure, draw at least two magnetic field lines between the two magnets.
(a) 
The intensity of a magnetic field is indicated by the lines of ______.
State briefly the modern views on magnetism.
Draw diagram showing the arrangement of the lines of force for two magnets in line, with unlike poles facing one another.
Complete the following diagram of magnets to show the lines of force.
The magnetic field lines always begin from ____________.
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.
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' |
