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If in the experiment of Wheatstone's bri...

If in the experiment of Wheatstone's bridge, the positions of cells and galvanometer are interchanged, then balance point will

A

change

B

remain unchanged

C

depend on the internal resistance of the cell and resistance of the galvanometer

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
when whetstone bridge is balanced,
`(P)/(Q) = (P)/(S)` or `(P)/(R ) = (Q)/(S)`
If the galvanometer is replaced with a cell in balanced wheatsone bridge, the condition for balanced bridge will be `P//R = Q//S`, which is there. Hence, balanced point will remain unchanged, where galvanometer shows no current.
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CENGAGE PHYSICS ENGLISH-ELECTRICAL MEASURING INSTRUMENTS-Single Correct
  1. In the circuit, the galvanometer G shows zero deflection. If the batte...

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  2. In a potentiometer experiment, the balancing with a cell is at length ...

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  3. If in the experiment of Wheatstone's bridge, the positions of cells an...

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  4. Sensitivity of potentiometer can be increased by

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  5. The resistance of a galvanometer is 10 Omega. It gives full-scale defl...

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  6. A milliammeter of range 10 mA has a coli of resistance 1 Omega. To use...

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  7. Two cells of emfs E(1) and E(2)(E(1)gtE(2)) are connected as shown in ...

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  8. Figure 6.46, shows a wheatstone net, with P = 1000 Omega,Q = 10.0 Omeg...

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  9. An ideal ammeter (zero resistance) and an ideal voltmeter (infinite re...

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  10. A constant 60 V dc supply is connected across two resistors of resista...

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  11. Figure 6.49 shows a circuit that may be used to compare the resistance...

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  12. In the circuit shown in Fig. 6.50, an idel ammeter and an ideal voltme...

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  13. In which of the follwing arrangements of resistors does the meter M, w...

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  14. Figure 6.51 shows a simple a potentiometer circuit for measuring a sma...

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  15. Figure6.52 shows a balanced wheatstone net. Now, it is disturbed by ch...

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  16. In an experiment to measure the internal resistance of a cell by a pot...

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  17. When an ammeter of negligible internal resistance is inserted in serie...

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  18. An 80 Omega galvanometer deflects full-scale for a potential of 20 mV....

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  19. A voltmeter having a resistance of 1800 Omega employed to measure the ...

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  20. In the given circuit, the voltmeter and the electric cell are ideal. F...

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