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For measurement of potential difference,...

For measurement of potential difference, potentiometer is perferred in comparison to voltmeter because

A

potentiometer is more sensitive than voltmeter

B

the resistance of potentiometer is less than voltmeter

C

potentiometer is cheaper than voltmeter

D

potentiometer does not take current from the circuit

Text Solution

Verified by Experts

The correct Answer is:
D
Potentiometer works on null deflection method. In balance condition no current flow in secondary circuit.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CURRENT ELECTRICITY-EXERCISE 1
  1. Figure shows a circuit with known resistances R(1) and R(2) . Neglect ...

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  2. The potential difference across the terminals of a battery is 50 V whe...

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  3. In the circuit shown, the currents i(1) and i(2) are

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  4. A battery of emf 10 V and internal resistance 3Omegais connected to a ...

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  5. In the following circuit reading of voltmeter V is

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  6. In the electric circuit shown each cell has an emf of 2 V and internal...

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  7. Five conductors are meeting a point x as shown in the figures . What i...

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  8. Two resistors of resistances 2Omega and 6Omega are connected in parall...

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  9. Four identical cells of emf epsilon and internal resistance r are to b...

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  10. Two cells having an internal resistance of 0.2 Omega and 0.4 Omega are...

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  11. Two cells of emf E(1) and E(2) are joined in opposition (such that E(1...

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  12. A circuit consists of three bateries of emf E(1) = 1V, E(2)=2V and E(3...

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  13. Two identical cells whether connected in parallel or in series gives t...

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  14. The current pasing through the ideal ammeter in the circuit given belo...

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  15. In a typical wheatstone network the resistance in cyclic order are A=1...

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  16. In a potentiometer experiment for measuring the emf of cell, the null ...

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  17. In a Wheatstone's network, P=2Omega, Q=2Omega, R=2Omega and S=3Omega. ...

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

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  19. For measurement of potential difference, potentiometer is perferred in...

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  20. Five resistance are connected as shown in the figure . The equivalent ...

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