A cell transfers 240 J of energy to 20 C of charge driven round a complete circuit. Its e.m.f. is:

  1. 6 V
  2. 12 V
  3. 24 V
  4. 4800 V
Answer

B) 12 V

mathcalE = WQ = 12 V. SLO P-09-E-15 · Application

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