Two sources of equal emf are connected to an external resistance R. The identical resistance of the two sources are $${{R}_{1}}$$ and $${{R}_{2}}$$$$\left( {{R}_{2}}{{R}_{1}} \right)$$. If the potential difference across the source having internal resistance $${{R}_{2}}$$is zero, then

Question

Two sources of equal emf are connected to an external resistance R. The identical resistance of the two sources are $${{R}_{1}}$$ and $${{R}_{2}}$$$$\left( {{R}_{2}}>{{R}_{1}} \right)$$. If the potential difference across the source having internal resistance $${{R}_{2}}$$is zero, then

TuteeHUB · Accepted Answer

$$R={{R}_{1}}{{R}_{2}}/\left( {{R}_{1}}-{{R}_{2}} \right)$$

TuteeHUB · Answer

$$R={{R}_{2}}-{{R}_{1}}$$

TuteeHUB · Answer

$$R={{R}_{2}}\times \left( {{R}_{1}}+{{R}_{2}} \right)/\left( {{R}_{2}}-{{R}_{1}} \right)$$

TuteeHUB · Answer

$$R={{R}_{1}}{{R}_{2}}/\left( {{R}_{2}}-{{R}_{1}} \right)$$

1.	Two sources of equal emf are connected to an external resistance R. The identical resistance of the two sources are \[{{R}_{1}}\] and \[{{R}_{2}}\]\[\left( {{R}_{2}}>{{R}_{1}} \right)\]. If the potential difference across the source having internal resistance \[{{R}_{2}}\]is zero, then
A.	\[R={{R}_{2}}-{{R}_{1}}\]
B.	\[R={{R}_{2}}\times \left( {{R}_{1}}+{{R}_{2}} \right)/\left( {{R}_{2}}-{{R}_{1}} \right)\]
C.	\[R={{R}_{1}}{{R}_{2}}/\left( {{R}_{2}}-{{R}_{1}} \right)\]
D.	\[R={{R}_{1}}{{R}_{2}}/\left( {{R}_{1}}-{{R}_{2}} \right)\]
Answer» D. \[R={{R}_{1}}{{R}_{2}}/\left( {{R}_{1}}-{{R}_{2}} \right)\]

Two sources of equal emf are connected to an external resistance R. The identical resistance of the two sources are \[{{R}_{1}}\] and \[{{R}_{2}}\]\[\left( {{R}_{2}}>{{R}_{1}} \right)\]. If the potential difference across the source having internal resistance \[{{R}_{2}}\]is zero, then

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