Question: What are the battery current I bat and the potential difference V a - V b between points a and b when the switch in

What are the battery current I_bat and the potential difference V_a - V_b between points a and b when the switch in FIGURE P28.55 is (a) open and (b) closed?

FIGURE P28.55:

What are the battery current Ibat and the potential difference Va -

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