In the circuit shown in figure reading of voltmeter is V_1 when only S_1 is closed, reading of voltmeter is V_2 when only S

Q: In the circuit shown in figure reading of voltmeter is $V_1$ when only $S_1$ is closed, reading of voltmeter is $ V_2$ when only $S_2$ is closed and reading of voltmeter is $V_3$ when both $S_1$ and $S_2$ are closed. Then

b In series : Potential difference $\propto$ $R$ When only $S_1$ is closed ${V_1} = \frac{3}{4}E = 0.75\,E$ When only $ S_2$ is closed ${V_2} = \frac{6}{7}E = 0.86\,E$ and when both $S_1$ and $S_2$ are closed combined resistance of $6R$ and $3R$ is $2R$ ${V_3} = \left( {\frac{2}{3}} \right)E = 0.67\,E$ $\Rightarrow $ ${V_2} > {V_1} > {V_3}$

SECTION - A [PHYSICS - MCQ]

GSEB - English Medium

In the circuit shown in figure reading of voltmeter is $V_1$ when only $S_1$ is closed, reading of voltmeter is $ V_2$ when only $S_2$ is closed and reading of voltmeter is $V_3$ when both $S_1$ and $S_2$ are closed. Then

A$V_3 > V_2 > V_1$
B$V_2 > V_1 > V_3$
C$V_3 > V_1 > V_2$
D$V_1 > V_2 > V_3$

Medium

STD 11 Science
NEET
STD 12 - 3. current electricity
Physics

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