A battery has an emf of ${\rm{15}}\,\,{\rm{V}}$ and internal resistance of ${\rm{1}}\,\,{\rm{\Omega }}$. Is the terminal to terminal potential difference less than, equal to or greater than ${\rm{15}}\,\,{\rm{V}}$ if the current in the battery is $\left( {\rm{1}} \right)$ from negative to positive terminal,$\left( {\rm{2}} \right)$ from positive to negative terminal $\left( {\rm{3}} \right)$ zero current?

JEE PHYSICS MCQ: CURRENT ELECTRICITY

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A battery has an emf of

\mathrm{15}\,\,\mathrm{V}

and internal resistance of

\mathrm{1}\,\,\mathrm{\Omega }

. Is the terminal to terminal potential difference less than, equal to or greater than

\mathrm{15}\,\,\mathrm{V}

if the current in the battery is

\left( \mathrm{1} \right)

from negative to positive terminal,

\left( \mathrm{2} \right)

from positive to negative terminal

\left( \mathrm{3} \right)

zero current?

View answer and explanation

Correct option: A

Less, grater, equal

Option D (Greater, less, equal) is incorrect. The correct answer is Less, greater, equal. The terminal potential difference depends on the direction of current and internal resistance.

JEE PHYSICS MCQ: CURRENT ELECTRICITY

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