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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
- Energy of all molecules of a monoatomic gas having a volume V and pressure P is 3PV/2.
- Water flows through a pipe. The area of cross-section at one place A₁=10 cm²,
- A body of mass 2 kg travels according to the law x(t)=pt+qt²+rt³
- The transition from the state 3 n = 3 to n = 1 in a hydrogen like atom results
- If a proton, a deuteron and an alpha particle, on being accelerated by the same
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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