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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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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If |A x B|= √3 A.B , then the value of |A + B| is
- The innermost orbit of hydrogen atom has a diameter 1.06Å. The diameter of tenth
- For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
- Potential at a point x-distance from the centre inside the conducting sphere
- The potential difference applied to an X-ray tube is 5 kV and the current through it
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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