in the figure the ideal batteries have emfs?

best answer
  • Both batteries in Figure a are ideal. Emf E 1 of battery 1 has a fixed value but emf E 2 of battery 2 can be varied between 1.0 V and 10 V. The plots in Figure b give the currents through the two batteries as a function of E 2. The vertical scale is set by is i s=0.20A.