100. (a) From symmetry we see that the current through the top set of batteries (i) is the same as the current through the second set. This implies that the current through the R= 4.0 Ωresistor at the bottom is iR= 2i. Thus, with rdenoting the internal resistance of each battery (equal to 4.0 Ω) and εdenoting the 20 V emf, we consider one loop equation (the
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.