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Potentiometer is superior to voltmeter b...

Potentiometer is superior to voltmeter because

A

Uses a long wire

B

Works on the principle of wheatstone bridge

C

Does not disturb the potential difference under measurement

D

Uses a battery of larger emf in the main circuit

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Verified by Experts

The correct Answer is:
C
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AAKASH INSTITUTE-Mock Test 28-EXAMPLE
  1. The current in the primary circuit of a potentiometer is 0.2 A. The sp...

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  2. The length of a wire of a potentiometer is 100 cm, and the e.m.f. of i...

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  3. Potentiometer is superior to voltmeter because

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  4. A charge + Q is moving upwards vertically. It enters a magnetic field ...

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  5. If an electron enters a magnetic field with its velocity pointing in t...

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  6. When a charged particle enters a uniform magnetic field its kinetic en...

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  7. A charge particle is moving in a plane perpendicular to uniform magnet...

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  8. In a magnetic field vecB=hati+yhatj+3hatk a charge particle (q, m) is ...

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  9. If a chraged particle at rest experiences no electromagnetic force, ...

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  10. An electron is moving along positive x-axis A unifrom electric field e...

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  11. A charged particle has acceleration veca=2hati=xhatj in a magnetic fie...

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  12. The force vecF experienced by a particle of charge q moving with a vel...

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  13. If a proton is projected in a direction perpendicular to a uniform mag...

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  14. An electron is moving along positive x-axis. To get it moving on an an...

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  15. Two particles X and Y having equal charges, after being accelerated th...

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  16. An electron enters a region where magnetic field (B) and electric fiel...

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  17. Lorentx force can be calculated by using the formula.

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  18. H^(+), He^(+) and O^(++) all having the same kinetic energy pass thro...

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  19. A charged paricle goes undeflected in a region containing electric an...

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  20. A particle is projected in a plane perpendicular to a uniform magnetic...

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