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In the figure the ideal batteries have emfs E1 = 4.89 V and E2 = 10.2 V, the resistances are each 2.41 0, and the potential is defined to be zero at the grounded point of the circuit. What are potentials (a) V1 and (b)V2 at the indicated points? R 2 R R + 182 Vo VI (a) Number i Units (b) Number Units