Physics · 2015
NEET 2015 · 3 May · Code E · Q28
A potentiometer wire has length 4 m and resistance 8 Ω. The resistance that must be connected in series with the wire and an accumulator of e.m.f. 2…
A potentiometer wire has length $\displaystyle 4$ m and resistance $\displaystyle 8 \Omega$. The resistance that must be connected in series with the wire and an accumulator of e.m.f. $\displaystyle 2$ V, so as to get a potential gradient $\displaystyle 1$ mV per cm on the wire is :
Official answer
(1)
$\displaystyle 32 \Omega$
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NEET (UG) 2015 Physics question, with the answer from NTA’s final answer key. Where our answers come from.