Question

4 Both batteries in Fig. 27-19a are ideal. Emf &, of battery 1 has
a fixed value, but emf E, of battery 2 can be varied between 1.0 V
and 10 V. The plots in Fig. 27-19b give the currents through the
two batteries as a function of En. The vertical scale is set by
is = 0.40 A. You must decide which plot corresponds to which bat-
tery, but for both plots, a negative current occurs when the direc-
tion of the current through the battery is opposite the direction of
that battery's emf. What are (a) emf &1, (b) resistance R1, and
(c) resistance R ?
Current (A)
2
(b)
E, (V)​

Answer 1

Answer:

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