Link to home
Start Free TrialLog in
Avatar of c_hockland
c_hocklandFlag for Greece

asked on

calculate EMF of Battery

when an external resistor R1=14 is connected to the terminals of the battery , a current of I=6 flows through the resistor. when an external resistor of R=64.4 is connected instead, the current is 2. Calculate the
emf of the battery and the internal resistance of the battery

solution that i tried:

for emf :  emf = Vab = IR  6*14

internal resistance should be  Vab= Emf-I*R and solve for R ,

am i right??
ASKER CERTIFIED SOLUTION
Avatar of ozo
ozo
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of manav_mathur
manav_mathur

Ozo, I hope by IR, yo umeant internal resistance and not I*R. Could be intereprested both ways.
Avatar of c_hockland

ASKER

actually both showed up at the same time..
thanks gentlemen..

thanks ozo!