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To measure the magnetic moment of a bar ...

To measure the magnetic moment of a bar magnet, one may use

A

a deflection glavanometer if the earth's horizontal field is known

B

an oscillation magnetometer if the earth's horizontal field is known

C

both deflection and oscillation magnetometer if the earth's horizontal field is not known

D

all of the above

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The correct Answer is:
d
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DISHA PUBLICATION-MAGNETISM AND MATTER-EXERCISE-1:CONCEPT BUILDER (TOPICWISE)
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  7. Three identical bars A, B and C are made of different magnetic materia...

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  8. Relative permitivity and permeability of a material epsilon(r) and mu(...

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  9. IF the current is doubled, the deflection is also doubled in

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  10. To measure the magnetic moment of a bar magnet, one may use

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  11. A bar magnet of moment of inertia 9xx10^(-5) kgm^(2) placed in a vibra...

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  12. If the period of oscillaion of freely suspended bar magnet in earth's...

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  13. A thin rectangular magnet suspnded freely has a period of oscillation ...

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  14. The time period of oscillation of a freely suspended bar magnet with u...

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  15. Two tangent galvanometers having coils of the same radius are connecte...

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  16. The perio of oscillation of a magnet in vibration magnetometer is 2 se...

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  17. Two magnets of magnetic moments M and 2M are placed in a vibration mag...

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  18. Two tangent galvanometers A and B have coils of radii 8cm and 16cm res...

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  19. The magnetic needle of a tangent galvanometer is deflected at an angle...

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  20. If theta1 and theta2 are two solutions of the equation a cos 2theta + ...

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