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A potentiometer wire of length 10 m and resistance 10 Ω per metre is connected in series with a resistance box and a 2 volt battery. If a potential difference of 100mV is balanced across the whole length of potentiometer wire, then the resistance introduced in the resistance will be
Options
(a) 1900Ω
(b) 900Ω
(c) 190Ω
(d) 90Ω
Correct Answer:
190Ω
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a small sphere is let fall vertically in a large quantity of still liquid of density
- The value of Poisson’s ratio lies between
- The photoelectric threshold frequency of a metal is ν. When light of frequency 4ν
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
- In refraction, light waves are bent on passing from one medium to the second medium
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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