Physics · Current Electricity
Two batteries, E1 (emf: 3 V, internal resistance: 0.5 Ω) and E2 (emf: 6 V, internal resistance: 1.0 Ω), are connected in series by connecting the positive terminal of E2 to the negative terminal of E1. A third battery E3 (emf: 6 V, internal resistance: 1.0 Ω) is connected in parallel with this series combination by connecting its positive terminal to the positive terminal of E1 and its negative terminal to the negative terminal of E2. The equivalent emf of this overall combination is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13.6 V
- 27.2 V
- 36.0 V
- 44.8 V✓
Correct answer
4.8 V
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