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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 wire of length 1 m is placed in a uniform magnetic field of 1.5 tesla at an angle
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A wire of length 1 m is placed in a uniform magnetic field of 1.5 tesla at an angle
- When two displacements represented by y₁=a sin(?t) are superimposed the motion is
- A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest
- A parallel plate air capacitor is charged to a potential difference of V volts.
- An object is seen through a simple microscope of focal length 12 cm.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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