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Solenoid Core in Magnetic Field

75.Magnetic n...

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75.Magnetic needle oscillates in a horizontal plane with the time period t at a place with angle of dip 60 degree when the same needle is made to oscillate in a vertical plane coinciding with the magnetic meridian its period will be 1)T/2 2)T 3)2T 4)2T

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Q. A magnetic needle oscillates in a horizontal plane with a period T at a place where the angle of dip is

60^{0}

. When the same needle is made to oscillate in a vertical plane coinciding with the magnetic meridian, its period will be

Q. The angle of the dip, if a dip needle oscillating in a vertical plane makes 40 oscillations per minute in a magnetic meridian and 30 oscillations per minute in a vertical plane at right angle to the magnetic meridian, is:

Q. A magnetic needle freed to rotate around a fixed vertical plane stay at an angle

60^{0}

with the horizontal . If the dip at that place is

37^{0}

, find the angle of the fixed vertical plane with the meridian.

Q. A magnetic needle is free to rotate in a vertical plane which makes an angle of

60^{\circ}

with the magnetic meridian. if the needle stays in a direction making an angle of

t a n^{- 1} (\frac{2}{\sqrt{3}})

with the horizontal, what would be the dip at that place?

Q. If a dip circle is placed in a vertical plane at an angle of

30^{o -}

to the magnetic meridian, the dip needle makes an angle of

45^{o -}

with the horizontal. The real dip at that place is?

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