Physics · Current Electricity
Two batteries E1 (emf: 6 V, internal resistance: 0.5 Ω) and E2 (emf: 12 V, internal resistance: 1.0 Ω) are connected in parallel by connecting their positive terminals to point A and negative terminals to point B. A third battery E3 [emf: 6 V, internal resistance: 23 Ω] is connected in series with this combination by connecting its positive terminal to B. The equivalent emf of this combination across the open terminals is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 124 V
- 214 V✓
- 312 V
- 42 V
Correct answer
14 V
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