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When shunt connected to galvanometer has...

When shunt connected to galvanometer has the value equal to resistance of galvanometer, range of current meter would become _______

A

twice

B

thrice

C

four times

D

five times

Text Solution

Verified by Experts

The correct Answer is:
A
We have `S=G/(n-1)`
Here S = G
`thereforen-1=G/S=1" "(becauseS=G)`
`thereforen=2`
Now, `I=nI_(G)=2I_(G)`
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KUMAR PRAKASHAN-MOVING CHARGES AND MAGNETISM-SECTION D (MULTIPLE CHOICE QUESTIONS)
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  2. When series resistance is increased, range of voltmeter

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  3. When shunt connected to galvanometer has the value equal to resistance...

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  4. Which of following statements is wrong?

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  5. There are three voltmeters of same range with resistance 10,000Omega,8...

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  6. In order to increase the sensitivity of a moving coil galvanometer, s...

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  7. If range of an ammeter with resistance 5Omega is to be made double the...

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  8. is known as current sensitivity of a galvanometer.

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  9. is known as voltage sensitivity of galvanometer.

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  10. Relation between voltage sensitivity (sigma(v)) and current sensitivit...

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  11. When 50Omega resistance is connected to one voltmeter, its range is ob...

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  12. When 3 mA and 5 mA currents are passed through two galvanometers P and...

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  13. 1A current is passed through a parallel combination of 8Omega resistan...

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  14. When 2.5Omega shunt is connected with 25Omega resistance of galvanomet...

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  15. Give unit of torsional constant.

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  16. To turn galvanometer into ammeter,

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  17. Resistance of galvanometer is G. If shunt required to make its range n...

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  18. Resistance of ammeter is ROmega. What will be the required shunt to de...

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  19. The resistance of galvanomenter is G and its current capacity is I(g)....

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  20. A galvanometer coil has a resistance of 12Omega and the metre shows fu...

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