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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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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When 10¹⁹elecrons are removed from a neutral metal plate through some process,
- Two spherical bodies of mass M and 5 M and radii R and 2 R released in free space
- 300j work is done in sliding a 2kg block up an inclined plane of height 10m
- The electric field part of an electromagnetic wave in a medium is represented by
- Electrons used in an electron microscope are accelerated by a voltage of 25 kV
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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