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In order to increase the sensitivity of ...

In order to increase the sensitivity of a moving coil galvanometer, one should decrease

A

The strength of its magn

B

The torsional constant of its suspension

C

The number of turns in its coil

D

The area of its coil

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The correct Answer is:
B
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ERRORLESS -MAGNETIC EFFECT OF CURRENT-Exercise
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  2. Two long parallel copper wires carry currents of 5 A each in opposite ...

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  3. In order to increase the sensitivity of a moving coil galvanometer, on...

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  4. A circular loop has a radius of 5 cm and it is carrying a current of 0...

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  5. Due to the flow of current in a circular loop of radius R, the magneti...

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  6. The magnetic moment of a circular coil carrying current is

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  7. A long wire A carries a current of 10 amp. Another long wire B, which ...

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  8. A stream of electrons is projected horizontally to the right. A straig...

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  9. The relation between voltage sensitivity 'sigma(V)' and current sensi...

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  10. What is the shape of magnet in moving coil galvanometer to make the ra...

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  11. If a wire of length l meter placed in uniform magnetic field 1.5 Tesla...

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  12. A current i flows in a circular coil of radius r. If the coil is place...

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  13. An arbitrary shaped closed coil is made of a wire of length L and a cu...

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  14. A circular coil having N turns is made from a wire of length L meter. ...

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  15. A small cylindrical soft iron piece is kept in a galvanometer so that

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  16. A, B and C are parallel conductors of equal length carrying currents I...

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  17. A straight conductor carries a current of 5A. An electron travelling w...

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  18. Two galvanometers A and B require 3mA and 5mA respectively to produce ...

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  19. Two long straight parallel conductors separated by a distance of 0.5m ...

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

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