Two batteries, E 1 (emf: 3 V, internal resistance: 0.5 Ω) and E 2 (emf: 6 V, internal resistance: 1.0 Ω), are connected in series by connecting the positive terminal of E 2 to the negative terminal of E 1 . A third battery E 3 (emf: 6 V, internal resistance: 1.0 Ω) is connected in parallel with this combination by connecting its positive terminal to the positive terminal of E 1 and its negative terminal to the E 2 . The equivalent emf of this combination is:

AAI ATC Junior Executive 27 Jul 2022 Shift 1 Paper

Question : 71 of 120

Marks: +1, -0

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 E₂to the negative terminal of E₁ . A third battery E₃ (emf: 6 V, internal resistance: 1.0 Ω) is connected in parallel with this combination by connecting its positive terminal to the positive terminal of E₁ and its negative terminal to the E₂. The equivalent emf of this combination is:

3.6 V
7.2 V
6.0 V
4.8 V

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