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A potentiometer wire of length 10 m and resistance 10 Ω per metre is connected in series

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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