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  • The galvanometer shown in the figure has resistance . It is shunted by a series combination of a resistanc

The galvanometer shown in the figure has resistance 10 \Omega. It is shunted by a series combination of a resistance S=1 \Omega and an. ideal cell of emf 2 \mathrm{~V}. A current 2 \mathrm{~A} passes as shown. Then choose the correct statements (o).

Option: 1

The reading of the galvanometer is 1 \mathrm{A}


Option: 2

The reading of the galvanometer is zero


Option: 3

The P.D. across the resistance S is 1.5 \mathrm{~V}.


Option: 4

 The P.P. across the resistance S is 2.5 \mathrm{~V}


Answers (1)

best_answer



In loop \mathrm{A B C D A}
\mathrm{10 i+2-(2-i)=0}
\mathrm{\Rightarrow i=0}

\mathrm{\Rightarrow \text { P.D. across } S=2-i=2 \mathrm{~V}}.
 

Posted by

shivangi.bhatnagar

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