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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 α (current gain) of transistor is 0.98, then what is the value of β
- The term liquid crystal refers to a state that is intermediate between
- The S.I. unit of electric flux is
- If light emitted from sodium bulb is passed through sodium vapour,
- The voltage gain of an amplifier with 9% negative feedback is 10.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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