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Write an expression for the ratio of res...

Write an expression for the ratio of resistance in balanced Wheatstone bridge.

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R G PUBLICATION-CURRENT ELECTRICITY-EXERCISE
  1. State Kirchhoff's voltage law and mention its significance.

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  2. What is Ohm's law? Describe.

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  3. Show thaqt the current I through an area of cross section is given by ...

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  4. Write the limitation of Ohm's law.

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  5. Find out the resistance value of the following resistors of four colou...

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  6. Deduce the relation of resistors when connected in parallel.

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  7. N resistors are connected in series, and all resistors are same. Find ...

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  8. Give the equations for combination of n cells in series.

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  9. Write an expression for the ratio of resistance in balanced Wheatstone...

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  10. Write the experimental procedure to find out an unknown resistance usi...

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  11. Give the experimental procedure to find out the internal resistance o...

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  12. Is Ohn's law universally applicable for all conducting elements? Write...

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  13. Apply Kirchoff's laws of current electricity to establish the conditi...

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  14. From the circuit calculate the resistance between A and B.

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  15. In a Wheatstone bridge the ratio arm P and Q are approximately equal. ...

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  16. Calculate the potential difference between the junction B and D in the...

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  17. In a meter bridge the resistance R and x, R being less than x. A balan...

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  18. In a meterbridge length of the wire is 100cm. At what point balance p...

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  19. Two cell of emf. 1.5v and 2 v and internal resistance 2 and 1Omega res...

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  20. State the principle of working of a potentiometer.

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