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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
- In stretching a spring by 2 cm, energy stored is given by U. Had is been stretched
- Two metallic spheres of radii 1 cm and 3 cm are given charges of -1 x 10⁻² C
- If the sodium light in Young’s double slit experiment is replaced by red light
- In case of linearly polarised light, the magnitude of the electric field vector
- The ratio of specific charge of an α-particle to that of a proton is
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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