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Resistance of a galvanometer is 25 ohm i...

Resistance of a galvanometer is 25 ohm it can carry a current of 0.5 mA. How can it be used to measure a current of 0.5 A.

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How can a voltmeter of resistance 200 ohm and measuring 10 V be used to measure a current of 5 A?

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A cell of emf epsilon and internal resistance r gives a current of 0.5 A with an external resistance of 12 Omega and a current of 0.25 A with an external resistance of 25 Omega. Calculate (a) internal resistance of the cell

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A galvanometer coil has a resistance of 12 Omega and the metre shows full scale deflection for a current of 3 mA. How will you convert the metre into a voltmeter of range 0 to 18 V?

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MODERN PUBLICATION-FORCE ON A CURRENT-EXERCISE
  1. To increase the current sensitivity of a moving coil galvanometer by 5...

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  2. In an exercise to increase current sensitivity by 25% , its resistane ...

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  3. A galvanometer of resistance 15 Omega gives full scale difflection for...

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  4. A resistance of 900 ohm is connected in series with a galvanometer of ...

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  5. How will you convert a 1.0 mA full scale deflection meter of resistanc...

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  6. Resistance of a galvanometer is 25 ohm it can carry a current of 0.5 m...

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  7. It is intended to measure a maximum urrent of 25A with an ammeter of r...

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  8. A galanometer has a resistance of 10 ohm. It gives maximum deflection ...

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  9. The coil of a galvanometer has a resistance 100 ohm . It gives full sc...

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  10. A galvanometer of resistance 80 ohm gives full scale deflection for a ...

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  11. How will you convert a 1.0 mA full scale deflection meter of resistanc...

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  12. A galvanometer with a coil of resistance 12.0 ohm shows full scale def...

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  13. A galvanometer with a coil of resistance 12.0 ohm shows full scale def...

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  14. A voltemeter reads up to 3 V. It resistance is 200 ohm. It is to be us...

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  15. A battery of e.m.f. 3 volt and internal resistance r is conneted inser...

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  16. A battery of emf 2 volts and internal resistance 0.1 ohm is being char...

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  17. Two resistane coils of 100 ohm and 200 ohm respectively are connected ...

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  18. A battery of e.m.f 12 V supplies a current through a oil of resistance...

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  19. A galvanometer coils is 2 cm square and contains 100 turns. Its period...

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  20. A galvanometer has a sensitivity of 60 divisions A^-1. When a shunt is...

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