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GO In Fig. 27-72, the ideal batteries have emfs ℰ1 = 20.0 V, ℰ2 = 10.0 V, and ℰ3 = 50. V, and the resistances are each 2.00 Ω. What are the (a) size and (b) direction (left or right) of current i1? (c) Does battery 1 supply or absorb energy, and (d) what is its power? (e) Does battery 2 supply or absorb energy, and (f) what is its power? (g) Does battery 3 supply or absorb energy, and (h) what is its power?
Figure 27-72 Problem 76.
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