PHYS208 Fundamentals of Physics II
Answer for Ch. 28, 48P
I labeled the currents as i.1 (through emf.1 and R.3),
i.2 (through emf.2 and R.2), and i.3 (through R.1).
Why did HRW not switch the labels of R.1 and R.3 -- it would have made a lot more sense!
|total provided by emf.1:
|total absorbed by emf.2:
Note that since the current through emf.2 is going in the opposite direction to its polarity, it is being re-charged (receiving power from emf.1).
Last updated Sept. 16, 1997.
Copyright George Watson, Univ. of Delaware, 1997.