In the circuit shown, \( R_{1} \) is increased. What happens to the reading of the voltmeter (id...

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In the circuit shown, \( R_{1} \) is increased. What happens to the reading of the voltmeter (ideal)?
\( \mathrm{P} \)
(1) Increases
(2) Decreases
(3) First increases then decreases
(4) Does not change
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