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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
- For a satellite moving in an orbit around the earth, the ratio of kinetic
- A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor.
- The initial rate of increase of current, when a battery of emf 6 V is connected
- The dimensions of Planck’s constant is same as that of
- The power factor of an AC circuit having resistance R and inductance L connected
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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