Q.
Assertion : In the following circuit, emf is $2\, V$ and internal resistance of the cell is $1 \Omega$ and $R = 1 \Omega$, then reading of the voltmeter is $1\, V$.
Reason : $ V = E - IR$ where $E = 2 V,\,,I = 2 / 2 = 1 A .$
Solution: