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Why circuit given by Wheatstone is calle...

Why circuit given by Wheatstone is called Wheatstone bridge ?

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Four resistors of resistance 15 Omega, 12 Omega, 4 Omega and 10 Omega arc connected in cyclic order to form a Wheatstone bridge. The resistance (in Q) that should be connected in parallel across the 10 Omega resistor to balance the Wheatstone bridge is

What are the advantages of the null-point method in a Wheatstone bridge ? What additional measurements would be required to calculte R_("unknown ") by any onther method ?

In a meter bridge as shown in figure, the balance point is found to be at 39.5 cm from the end A, when the Y resistor is of 12.5 Omega . Determlne the resistance of X. Why are the connections between resistors in a Wheatstone or meter bridge made of thick copper strips ?

KUMAR PRAKASHAN-CURRENT ELECTRICITY-SECTION [A] TRY YOURSELF
  1. What is called series connection of cell ? Derive equation of equivale...

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  2. What is parallel connections of cells? Derive the equivalent equation ...

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  3. What will be ratio of equivalent emf of series connection of two cell ...

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  4. Kichhoff's junction role represents…….

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  5. Write and explain Kirchhoff's second law (Loop rule).

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  6. Kirchhoff's junction law represent conservation of which physical quan...

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  7. Kirchhoff's loop law represent conservation of which physical quantity...

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  8. Why circuit given by Wheatstone is called Wheatstone bridge ?

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  9. When Wheatstone bridge is said to be in balanced condition ?

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  10. What is called as battery arm ?

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  11. What is called as galvanometer arm ?

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  12. What is value of current flowing through galvanometer in balanced cond...

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  13. Write principle of Wheatstone bridge.

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  14. To find value of unknown resistance by using meter bridge why position...

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  15. If null point of meter bridge is obtained at 50 cm what will be value ...

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  16. What is potentiometer ? Explain principle of potentiometer.

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  17. What is potentiometer ? Explain principle of potentiometer.

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  18. Define potential gradient and write its unit.

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  19. Write equation to measure internal resistance of cell by using potenti...

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  20. Write advantages of potentiometer.

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