Physics · 2019
JEE Main · 10 April 2019, Shift 1 · Q17
In the given circuit, an ideal voltmeter connected across the 10 Ω resistance reads 2 V. The internal resistance r, of each cell is:
In the given circuit, an ideal voltmeter connected across the $\displaystyle 10 \Omega$ resistance reads $\displaystyle 2$ V . The internal resistance r , of each cell is :
Official answer
(3)
$\displaystyle 0.5 \Omega$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.