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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
- A missile is fired for maximum range with an initial velocity of 20 m/s
- A string is stretched between fixed points seperated by 75 cm. It is observed
- A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
- A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular
- A block is moving up an inclined plane of inclination 60° with velocity of 20 ms⁻¹
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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