A) Rutherford
B) Roentgen
C) Becqueral
D) Curie.
Correct Answer: D
Solution :
When a resistance is joined in parallel with voltmeter.
Now V and S are in parallel so it become an ammeter. 
\[\therefore \]A and\[{{A}_{1}}\]the two ammeters are in series reading will become equal. \[\therefore \]A increases and in parallel R decreases which decreases V.
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