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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
- Imagine a new planet having the same density as that of earth but it is 3 times bigger
- An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg
- A 10 micro farad capacitor is charged to 500 V and then its plates are joined
- A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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