Physics · 2018
JEE Main · 16 April 2018, Shift 1 · Q16
A galvanometer with its coil resistance 25 Ω requires a current of 1 mA for its full deflection. In order to construct an ammeter to read up to a…
A galvanometer with its coil resistance $\displaystyle 25 \Omega$ requires a current of $\displaystyle 1$ mA for its full deflection. In order to construct an ammeter to read up to a current of $\displaystyle 2$ A, the approximate value of the shunt resistance should be :
Official answer
(2)
$\displaystyle 1.25 \times 10^{-2} \Omega$
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JEE Main 2018 Physics question, with the answer from NTA’s final answer key. Where our answers come from.