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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
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The distance travelled by an object along a straight line in time t is given by
- Magnetic flux φ (in weber) linked with a closed circuit of resistance 10 Ω varies
- If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
- The original temperature of a black body is 727⁰C. The temperature at which this black
- The de-Broglie wavelength of an electron having 80 eV of energy is nearly
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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