current provided by a battery is maximum when:

Question

ujjwal · Answer

resistance in circuit is minimum..

anonymous · Answer

options are-1)internal resistance=ext resistance
2)int resist>ext resist
3)int resist<ext resist

ujjwal · Answer

you must have combination for battery.. Are the cells (of battery) connected in series or parallel or mixed?

anonymous · Answer

not specified!but then in the solutions it is explained in that way.

anonymous · Answer

could you please explain me?

ujjwal · Answer

the current is maximum:
1) for series combination when internal resistance is smaller than external resistance..
2) for parallel combination when internal resistance is greater than external resistance
3) for mixed combination when internal resistance is approximately equal to external resistance.

anonymous · Answer

how?????????

ujjwal · Answer

we have derivations for it.. wait i'll try to search and provide a link to you..

anonymous · Answer

:)

ujjwal · Answer

your answer begins from page 5 (exactly) but you may consider reading it from beginning.. :) http://www.ssapunjab.org/sub%20pages/edusat/phy1.pdf

anonymous · Answer

:D thanks a lot dude:)

vincent-lyon.fr · Answer

Hi! Does "battery" always imply association of multiple cells?

Current provided by simple cell (emf + int resistance) is maximum when external resistance is minimum, as @ujjwal said.

But power provided is maximum when int. resistance equals ext. resistance

ujjwal · Answer

yeah @Vincent-Lyon.Fr battery always imply association of multiple cell..

vincent-lyon.fr · Answer

Thanks!