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Which of the following statement is fals...

Which of the following statement is false ?

A

Krichhoff's second law represents energy conservation

B

Wheattstone bridge is the most sensitive when all the four resistance are of the same order of magnitude

C

In a balanced wheatstone bridge if the cell and the galvanometer are exchanged, the null point is distrubed

D

A rheostate can be used as a potential divider.

Text Solution

Verified by Experts

The correct Answer is:
C
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RESONANCE-CURRENT ELECTRICITY-Exrcies-3(PART-2)
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  2. The Kirchhoff's first law (Sigmai = 0) and second law (SigmaiR = Sigma...

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  3. The resistance of a wire is 5 ohm at 50^@C and 6 ohm at 100^@C. The re...

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  4. Shown in the figure below is a meter- bridge set up will null deflecti...

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  5. A.5 V battery with internal resistance 2 Omega and a 2 V battery with ...

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  6. Two conductors have the same resistance at 0^@C but their temperature ...

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  7. If a copper wire is stretched to make it 0.1% longer wha is the percen...

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  8. The current in the primary circuit of a potentiometer is 0.2 A. The sp...

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  9. Two electric bulbs marked 25W-220V and 100W-220V are connected in seri...

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  10. The supply voltage to room is 120 V. The resistance of the lead wires ...

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  11. This questions has Statement I and Statement II. Of the four choices g...

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  12. In a large building, there are 15 bulbs of 40 W, 5 bulbs of 100 W, 5 f...

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  13. When 5 V potential difference is applied across a wire of length 0.1 m...

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  14. A galvanometer having a coil resistance of 100 omega gives a full scal...

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  15. In the following circuit the current in each resistance is

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  16. Which of the following statement is false ?

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  17. When a current of 5mA is passed through a galvanometer having a coil o...

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  18. Two batteries with e.m.f 12 V and 13 V are connected in parallel acros...

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  19. In a potentiometer experiment it is found that no current passes throu...

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  20. On interchanging the resistances, the balance point of a meter bridge ...

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