A circuit has cells of e.m.f. 3 V and 1.5 V in parallel (same polarity) with internal resistances 1 Ω each. The current circulating between them (no external load) is:

  1. 2.25 A
  2. 0.75 A
  3. 4.5 A
  4. 1.5 A
Answer

B) 0.75 A

Loop: 3 - 1.5 = I(1 + 1). SLO P-09-E-22 · Application

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