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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
- A uniform force of (3i+j) Nacts on a particle of mass 2 kg.Hence the particle is displaced
- When a bullet of mass 10 g and speed 100 ms⁻¹ penetrates up to distance 1 cm
- For a given velocity, a projectile has the same range R for two angles of projection.
- A ballet dancer, dancing on smooth floor, is spinning about a vertical axis
- In a Rutherford scattering experiment when a projectile of charge Z₁ and mass M₁
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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