Current Electricity Charging Discharging Of Capacitors Question 718
In the series combination of three cells each having emfs and internal resistance r. If three cells are wrongly connected, then total emf and internal resistance of this combination will be
Options:
A) $ n\varepsilon ,\ (nr-3r) $
B) $ ( n\varepsilon - 2\varepsilon )nr $
C) $ ( n\varepsilon -4\varepsilon )nr $
D) $ ( n\varepsilon -6\varepsilon )nr $
Show Answer
Answer:
Correct Answer: D
Solution:
Since due to wrong connection of each cell the total emf reduced to 2e then for wrong connection of three cells the total emf will be reduced to $
$ whereas the total or equivalent resistance of cell combination will be R_total.
BETA
