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A galvanometer of resistance G is conver...

A galvanometer of resistance G is converted into a voltmeter to measure upto V volts by connecting a resistance `R_1` in series with the coil. If a resistance `R_2` s connected in series with it then it can measure upto `V/2` volts Find the resistance R, in terms of `R_1` and `R_2` required to convert it into a voltmeter that can read upto 2V volts.

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MODERN PUBLICATION-FORCE ON A CURRENT-EXERCISE
  1. A galvanometer of resistance G is converted into a voltmeter to measur...

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  2. When is the force experienced by a current carrying conductor placed i...

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  3. Find the force acting on a current carrying conductor placed in an uni...

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  4. When is the force experienced by a current carrying conductor placed i...

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  5. When is the force experienced by a current carrying conductor placed i...

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  6. Derive an expression for the torque acting on a rectangular current ca...

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  7. Write the expression for the magnitude of force per unit length betwee...

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  8. Two parallel wires carrying currents in the same direction attract eac...

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  9. Define an ampere in terms of the force between current carrying conduc...

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  10. WHat is the direction of force between two parallel conductors carryin...

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  11. Two long straight parallel conductors 'a' and 'b', carrying steady cur...

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  12. Prove that the parallel conductors of infinite length, carry current i...

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  13. WHat is the direction of force between two parallel conductors carryin...

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  14. Write the expression for the magnitude of force per unit length betwee...

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  15. WHat is the direction of force between two parallel conductors carryin...

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  16. Derive an expression for the torque acting on a rectangular current ca...

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  17. Derive an expression for the torque acting on a rectangular current ca...

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  18. Derive an expression for the torque acting on a rectangular current ca...

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  19. A rectangular loop of metallic wire is of length a and breadth b and c...

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  20. Derive an expression for the torque acting on a rectangular current ca...

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  21. Derive an expression for the torque acting on a rectangular current ca...

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