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A potentiometer wire has length 4m resistance 8Ω. The resistance that must be connected in series with the wire and an accumulator of emf 2V, so as to get a potential gradientof 1mV per cm on the wire is
Options
(a) 32Ω
(b) 40Ω
(c) 44Ω
(d) 48Ω
Correct Answer:
32Ω
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a vessel, the gas is at a pressure P. If the mass of all the molecules
- If the momentum of electron is changed by P, then the de-Broglie wavelength
- A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor.
- Large transformers, when used for some time, become hot and are cooled by circulating
- In a circuit, 5% of total current passes through a galvanometer. If resistance
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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