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Explain the principle on which the working of a potentiometer is based. Why is the use of potentiometer preferred over that of a voltmeter for measuring the e.m.f. of a cell.

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Why is a potentiometer preferred over a voltmeter for determining the e.m.f. of a cell?

Name the device used for measuring the e.m.f. of a cell.

The instrument for the accurate measurement of the e.m.f. of a cell is:

What is the principle of a potentiometer? With the help pf circuit diagram, explain the use of potentiometer to measure internal resistance of a given primary cell.

MODERN PUBLICATION-ELECTRICAL MEASUREMENTS-EXERCISE
  1. Explain the principle on which the working of a potentiometer is based...

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  2. State and explain Kirchhoff's laws.

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  3. State and explain Kirchhoff's laws.

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  4. State and explain Kirchhoff's laws.

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  5. Derieve condition of a balanced wheatstone's bridge.

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  6. Using Kirchoff's law, derive the condition for the balance of a Wheats...

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  7. Using Kirchoff's law, derive the condition for the balance of a Wheats...

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  8. State Wheatstone bridge principle. Use kirchoff'slaws to obtain the re...

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  9. State Wheatstone bridge principle. Use kirchoff'slaws to obtain the re...

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  10. Draw the circuit diagram of Wheatstone bridge. Under what condtion, no...

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  11. Draw the circuit diagram of Wheatstone bridge. Under what condtion, no...

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  12. With help of circuit diagram, explain how a meter bridge can be used t...

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  13. Explain the principle of Wheatstone bridge for determining and unknown...

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  14. What is a slide wire bridge? How can you find unknown resistance by it...

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  15. With help of circuit diagram, explain how a meter bridge can be used t...

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  16. Draw a circuit diagram for determining the unknown resistance R using ...

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  17. Draw a circuit diagram of a meter bridge and write the necessary mathe...

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  18. Draw a cricuit diagram of a metre bridge arranged to find the value of...

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  19. Draw a cricuit diagram of a metre bridge arranged to find the value of...

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  20. Draw a neatly labelled diagram of a potentionmeter and explain its pri...

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  21. Explain the principle on which the working of a potentiometer is based...

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