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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.
Related Questions: - A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire
- A circular disc rolls down an inclined plane.The ratio of rotational kinetic energy
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire
- A circular disc rolls down an inclined plane.The ratio of rotational kinetic energy
- A meter stick of mass 400 g is pivoted at one end and displaced through an angle 60°.
- Surface tension of water will be minimum at
- An object is placed 30 cm away from a convex lens of focal length 10 cm and a sharp
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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