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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
- The density of ice is 0.9 g/cc and that of sea water is 1.1 g/cc
- In common base circuit of a transistor, current amplification factor is 0.95.
- In an NPN transistor the collector current is 24 mA. If 80% of the electrons
- If α (current gain) of transistor is 0.98, then what is the value of β
- A uniform rod of length l is placed with one end in contact with the horizontal
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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