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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
- If seperation between screen and source is increased by 2%. What would be the effect
- If force(F),velocity(v) and time(T) are taken as units, then the dimensions of mass are
- A current of 2 A is made to flow through a coil which has only one turn. The magnetic
- A slab consists of two parallel layers of two different materials of same thickness
- An a.c. supply gives 30 volt r.m.s which passes through a 10Ω resistance.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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