The discussion revolves around calculating the potential difference across a 23 ohm load resistor connected to a battery with a specified emf and internal resistance. The problem involves concepts from electrical circuits, particularly Ohm's law and the impact of internal resistance on voltage measurements.
Some participants have provided guidance on the correct interpretation of the equations involved, while others express confusion about the use of total resistance versus just the external resistance. There is acknowledgment of mistakes in previous calculations, and a participant indicates they have reached an understanding after considering feedback.
Participants are working under the constraints of a homework assignment, which may limit the information they can use or the methods they can apply. There is an emphasis on ensuring clarity in the definitions of variables used in the equations.
That should be R+r in that last equation, since you are adding +r to both sides of the equation before it.ugodzilla said:
R is simply 23 ohms, not 23+.555
When you said that "V=emf - Ir", that V is the voltage across the 23 ohm resistor.ugodzilla said:
You're welcome, glad it worked out.ugodzilla said:
