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  • How is a galvanometer converted into a voltmeter and an ammeter? Draw the relevant diagrams and find the resistance of the arrangement in each case. Take resistance of galvanometer as G.    

How is a galvanometer converted into a voltmeter and an ammeter? Draw the relevant diagrams and find the resistance of the arrangement in each case. Take resistance of galvanometer as G.

 

 

 

 
 
 
 
 

Answers (1)

\rightarrow By connecting a large resistance R in series with galvanometer we can convert galvanometer to a voltmeter.

\rightarrow To convert galvanometer to ammeter connect a low resistance (shunt) in parallel to the galvanometer

Voltmeter

Ammeter

Equivalent resistance for

i) Voltmeter =R+G

ii) Ammeter =\frac{Gs}{G+s}

Posted by

Safeer PP

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