Physics · 2019
JEE Main · 11 January 2019, Shift 2 · Q29
A galvanometer having a resistance of 20 Ω and 30 divisions on both sides has figure of merit 0.005 ampere/division. The resistance that should be…
A galvanometer having a resistance of $\displaystyle 20 \Omega$ and $\displaystyle 30$ divisions on both sides has figure of merit $\displaystyle 0.005$ ampere/division. The resistance that should be connected in series such that it can be used as a voltmeter upto $\displaystyle 15$ volt, is :
Official answer
(1)
$\displaystyle 80 \Omega$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.