Question

In a potentiometer experiment, when three cells ${\rm{A, B}}$ and ${\rm{C}}$ care connected in series the balancing length is found to be ${\rm{740}}\,\,{\rm{cm}}$. if ${\rm{A}}$ and ${\rm{B}}$ are connected in series balancing length is ${\rm{540}}\,\,{\rm{cm}}$. then the emf of ${E_A},\,\,{E_B}\,\,and\,\,{E_C}$ are respectively (in volts)

Accepted Answer

$\begin{array}{*{20}{l}} {{\rm{1,1}}{\rm{.2}}\,\,{\rm{and}}\,\,{\rm{1}}{\rm{.5}}} \end{array}$

Answer

$\begin{array}{*{20}{l}} {{\rm{1,2 and 3}}} \end{array}$

Answer

${{\rm{1}}{\rm{.5,2 and 3}}}$

Answer

$\begin{array}{*{20}{l}} {\begin{array}{*{20}{l}} {{\rm{1}}{\rm{.5, 2}}{\rm{.5 and 3}}{\rm{.5}}} \end{array}} \end{array}$

JEE PHYSICS MCQ: CURRENT ELECTRICITY

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