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A moving coil galvanometer of resistance...

A moving coil galvanometer of resistance `20 Omega` gives a full scale deflection when a current of `1mA` is passed through it. It is to be converted into an ammeter reading `20 A` on full scale. But the shunt of `0.005 Omega` only is available. What resistance should be connected in series with the galvanometer coil?

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PHYSICS GALAXY - ASHISH ARORA-CURRENT ELECTRICITY-All Questions
  1. A part of a circuit is shown in figure. Here reading of ammeter is 5A ...

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  2. Resistances R(1) and R(2), each 600 Omega, are connected in series as ...

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  3. A moving coil galvanometer of resistance 20 Omega gives a full scale d...

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  4. The resistance RG of the coil of a pivoted-coil galvanometer is 9.36 O...

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  5. (a) A voltmeter with resistance Rv is connected across the terminals o...

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  6. An ammeter with resistance RA is connected in series with a resistor R...

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  7. Assume that the batteries in the circuit shown in figure- 3.384 have n...

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  8. Three resistors having resistances of 1.60 Omega, 2.40 Omega and 4.80 ...

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  9. Draw the circuit for experimental verification of Ohm's law using a so...

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  10. A galvanometer (coil resistance 99 Omega.) is converted into an ammete...

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  11. Two electic bulbs marked 25 W -220 V and 100 W - 220 V are connected i...

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  12. Fig. illustrates a potentiometric circuit by means of which we can ve...

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  13. A copper coil has resistance of 20.0 Omega at 0^@C and a resistance of...

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  14. A metallic wire has a resistance of 120 Omega at 20^@C. Find the tempe...

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  15. A galvanometer has coil resistance of 99 Omega with its full deflectio...

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  16. A galvanometer has coil resistance 30 Omega and full deflection curren...

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  17. In the circuit shown in figure-3.387, the voltmeter is having a resist...

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  18. In the circuit shown in figure-3.388, each ammeter has coil resistance...

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  19. In the circuit shown in figure-3 .3 89, the voltmeter reads 30V when i...

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  20. A p.d of 220 V is maintained across a 12000 Omega rheostat as shown. T...

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