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A galvanometer can be converted to a vo...

A galvanometer can be converted to a voltmeter of full -scale deflection `V_(0)` by connection a series resistance `R_(1)` and can be converted to an ammeter of full -scale deflection `l_(0)` by connection a shunt resistance `R_(2)` .What is the current flowing thought the galvanometer at its full -scale deflection ?

A

`(V_(0)-l_(0)R_(2))/(R_(1)-R_(2))`

B

`(V_(0)+l_(0)R_(2))/(R_(1)+R_(2))`

C

`(V_(0)-l_(0)R_(1))/(R_(2)-R_(1))`

D

`(V_(0)+l_(0)R_(1))/(R_(1)+R_(2))`

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