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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?

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

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

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

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  4. What is potentiometer? With the help of circuit diagram, explain how a...

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  5. Define e.m.f of a cell. How can you compare the e.m.f of the cells usi...

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  6. State the principle of a potentiometer.

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  7. What is potentiometer? With the help of circuit diagram, explain how a...

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  8. Explain the principle of a potentiometer. How will you compare the e.m...

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  9. Define e.m.f of a cell. How can you compare the e.m.f of the cells usi...

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  10. Define internal resistances of a cell. explain how the internal resist...

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  11. What is the principle of a potentiometer? With the help pf circuit dia...

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  12. What is the principle of a potentiometer? With the help pf circuit dia...

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  13. How will you use potentiometer to determine internal resistances of a ...

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  14. What is the principle of a potentiometer? With the help pf circuit dia...

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

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

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

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

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

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

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