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
Text Solution
Verified by ExpertsThe correct answer is:
B
In series : Potential difference ∝ ∝ R
When only S 1 is closed 
When only S 2 is closed 
and when both S 1 and S 2 are closed combined resistance of 6R and 3R is 2R
∴ ∴ 
⇒ ⇒ 
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