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In the given arrangement, the reading if ammeter is same in each case when either \mathrm{K_1}  or \mathrm{K_2} is closed. The reading of the ammeter is

Option: 1

\mathrm{\frac{E_1+E_2}{R}}


Option: 2

\mathrm{\frac{E_1-E_2}{R}}


Option: 3

Data given is not sufficient
 


Option: 4

 None of these


Answers (1)

best_answer

\mathrm{ I=\frac{E-E_1}{R^{\prime}}=\frac{E-E_2}{R+R^{\prime}}}

\begin{aligned} &\mathrm{\frac{E-E_2}{E-E_2}=\frac{R^{\prime}}{R+R^{\prime}}}\\ &\begin{aligned} &\mathrm{ \frac{E-E_2}{E-E_2}=\frac{R}{R^{\prime}} }\\ &\mathrm{ I=\frac{E_1-E_2}{R}}\\ \end{aligned} \end{aligned}

Posted by

Shailly goel

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