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In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm. If the cell is replaced by another cell, then balancing length is found to be 40cm. What is the emf of second cell?
Options
(a) ≈1.5V
(b) ≈1.67V
(c) ≈1.47V
(d) ≈1.37V
Correct Answer:
≈1.67V
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon.
- The current through an inductor changes from 3 A to 2 A is 1 m/s. If induced e.m.f.
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
- A calorimeter contains 0.2 kg of water at 30° C. 0.1kg of water at
- A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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