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Assertion: Potentiometer measures correc...

Assertion: Potentiometer measures correct value of emf of a cell.
Reason: No current flows through cell at null point of potentiometer.

A

If both Assertion `&` Reason are True `&` the Reason is a correct explanantion of the Assertion

B

If both Assertion `&` Reason True but Reason is not a correct explanation of the Assertion

C

If Assertion is True but the Reason is False

D

If both Assertion `&` Reason are False.

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ALLEN -CURRENT ELECTRICITY-EX.II
  1. In the arrangement of resistances shown below, the effective resistanc...

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  2. A potentiometer wire of length 1000 cm has a resistance of 10 ohms. It...

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  3. Electromotive force of a cell is basically a

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  4. A battery of e.m.f. 10 V and internal resistance 0.5 ohm is connected ...

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  5. A galvanometer has resistance G and Current I(g) produces full scale d...

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  6. In a neon discharge tube 2.9 xx 10^(18) Ne^(+) ions move to the right ...

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  7. When a resistance of 2 ohm is connected across terminals of a cell, th...

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  8. Two nonideal batteries are connected in parallel. Consider the followi...

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  9. The current in 8Omega resistance is (as per given circuit)

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  10. Assertion: Electric field inside a current carrying wire is zero. Re...

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  11. Assertion: A voltmeter must be connected in parallel in a circuit and ...

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  12. Assertion : Electric field outside the conducting wire which carreis a...

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  13. Assertion:- Kirchhoff's voltage law indicates that field is conservati...

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  14. Assertion: Terminal potential difference of a cell is always less than...

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  15. Assertion: When wheatstone bridge is balanced then current through cel...

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  16. Assertion: Potentiometer measures correct value of emf of a cell. Re...

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  17. Statement- 1 : When cells are connected in parallel to the external l...

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  18. potentiometer wire made of manganin because it has

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  19. Assertion: meterbridge wire is made up of manganin Reason: The tempe...

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  20. Assertion: Current is a scalar quantity. Reason: Electric current a...

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