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Earth's magnetic field always has a hori...

Earth's magnetic field always has a horizontal component except at

A

the equator

B

a magnetic pole

C

a latitude of 60°N

D

a longitude of 60° E

Text Solution

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The correct Answer is:
B
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BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
  1. A moving coil galvanometer has resistance 50Omega. The maximum bearabl...

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  2. A proton enters a magnetic field of flux density 1.5Wb/m^2 with a sp...

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  3. An electron and a proton enter a magnetic field perpendicularly. Both ...

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  4. The earth's magnetic induction at a certain point is [7x 10^(-5)Wbm^-2...

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  5. Two concentric circular coils of 10 turns cach are situated in the sam...

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  6. A long copper tube of inner radius R carries a current I. The magnetie...

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  7. Two long parallel wires carry equal current I in the same direction. T...

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  8. In order to increase the sensitivity of a moving coil galvanometer one...

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  9. A galvanometer has a resistance of 25Omega and a maximum of 0.01A curr...

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  10. A voltmeter of resistance (2 x 10^4 Omega) reads 5V. To make it read 2...

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  11. A galvanometer of resistance 20Ω is to be converted into an ammeter of...

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  12. Two long parallel wires carry equal current I in the same direction. T...

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  13. An electric charge moves with a constant velocity v parallel to the li...

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  14. When a magnetic field is applied on an electron moving with uniform ve...

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  15. A stationary electron placed in a magnetic field experiences a mechani...

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  16. The force acting on an electron at rest in a uniform magnetic field B ...

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  17. A conducting circular loop of radius r carries a current I. It is plac...

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  18. Earth's magnetic field always has a horizontal component except at

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  19. Distinguish among paramagnetic , ferromagnetic and diamagnetic materia...

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  20. Demagnetisation of magnets is effected by

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