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State the principle of potentiometer....

State the principle of potentiometer.

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CHETANA PUBLICATION-Current Electricity-Exercise
  1. Length of potentiometer wire is 600 cm and a driving cell develop 6V p...

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  2. The algebraic sum of current at junction in any electric circuit is eq...

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  3. Which of the following instruments in generally used with a galvanomet...

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  4. A Wheatstone's bridge ABCD is balanced with a galvanometer between the...

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  5. The emf of a cell is E volt and internal resistance is r ohm. It resis...

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  6. State the principle of potentiometer.

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  7. Write down the equation for thermo emf when cold junction is at 0^@C a...

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  8. A cell of emf 1.1 V and internal resistance r is connected across as e...

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  9. State any two advantages of potentiometer over voltmeter.

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  10. Distinguish between ammeter and voltmeter, (any two points).

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  11. If V = nv Vg then show that X = G(nv -1).

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  12. Define potential gradient. State its unit and dimension.

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  13. Four resistances 4Omega, 8Omega, xOmega and 6Omega are connected in th...

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  14. If a galvanometer is shunted by one third of its resistance, find the ...

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  15. Explain:- Thermo emf

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  16. Explain:- see back effect

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  17. Explain:- Thermocouple.

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  18. State any three sources of error in meterbridge experiment and steps t...

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  19. With a resistance R1 in the left gap and a resistance R2 in the right ...

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  20. State Kirchoff's laws in electricity:- Calculate the value of I1 and I...

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