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Define the agonic line. - Physics

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प्रश्न

Define the agonic line.

परिभाषा
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उत्तर

A line which joins all the places on earth, having zero angle of declination is called agonic line.

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अध्याय 11: Electricity and Magnetism – 2 - Exercise (B) Subjective Questions

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गोयल ब्रदर्स प्रकाशन A New Approach to ICSE Physics Part 1 [English] Class 9
अध्याय 11 Electricity and Magnetism – 2
Exercise (B) Subjective Questions | Q 5.2

संबंधित प्रश्न

You are given the magnetic field pattern of a magnet. How will you find out from it where the magnetic field is the strongest?


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   


A portable radio has a built-in transformer so that it can work from the mains instead of batteries. Is this a set-up or step down transformer? 


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]


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.

Insert two magnetic field lines on either side of the magnet using  arrow head to show the direction of each field line.


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.


Complete the following diagram of magnets to show the lines of force.


Complete the following diagram of magnets to show the lines of force.


The relation between weber and Tesla is ______.


State the inference drawn about the direction of the magnetic field lines on the basis of the following diagrams.

Figure 'a' Figure 'b'

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