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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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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output
- The mean distance between the atoms of iron is 3 x 10⁻¹⁰ m and interatomic force
- An object is placed at a distance of 10 cm from a co-axial combination of two lenses
- The polarising angle of glass is 57⁰. A ray of light which is incident at this angle
- The escape velocity of a body from earth’s surface is Ve. The escape velocity
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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