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In a galvanometer, the deflection become...

In a galvanometer, the deflection becomes one half when the galvanometer is shunted by a `20Omega` resistance is

A

`5 Omega`

B

` 10 Omega`

C

` 40 Omega`

D

` 20 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
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MOTION-Electrical Instrument -EXERCISE -1
  1. In a galvanometer, the deflection becomes one half when the galvanomet...

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  2. A galvanometer has a resistance of 20Omega and reads full-scale when 0...

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  3. In the circuit shown the resistance of voltmeter is 10,000 ohm and tha...

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  4. The resistance of galvanometer coil is 0.1 Komega . The current for fu...

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  5. The resistance of 100 Omega and 200 Omega are connected in series with...

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  6. The shunt required for 10% of main current to be sent through the movi...

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  7. A galvanometer of resistance 100Omega gives full scale deflection for ...

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  8. A galvanometer of resistance 100Omega gives full deffection for a curr...

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  9. A galvanometer of resistance 100Omega gives full deffection for a curr...

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  10. The deflection in a galvanometer fulls from 50 divisions to 20 divisio...

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  11. The resistance of a moving coil galvanometer is 20 Omega . If requires...

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  12. A galvanometer has a resistance of G ohm and range of V volt. Calculat...

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  13. The deflection of a moving coil galvanometer reduces to half on shunti...

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  14. When the current flowing in a galvanometer is (1/n) of the total curre...

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  15. A galvanometer can be converted into a voltmeter by connecting a

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  16. In every experiment with potentiometer in the null point state, the po...

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  17. The specific resistance per unit area of cross section of a wire is eq...

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  18. If the length of the potentiometer wire is doubled, the sensitivity fo...

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  19. The potential gradient of the potentiometer wire depends on

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  20. The potentiometer wire is replaced by another wire whose length thickn...

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