TS EAMCET 7 May 2018 Shift 1 Solved Paper

Section: Physics

Question : 107 of 160

Marks: +1, -0

The emfs of three cells connected in parallel are E1 = 5V , E2 = 8V and E3 = 10V and their internal resistances are R1 = 1 Ω , R2 = 2 Ω and R3 = 3 Ω respectively. By changing E3 to E3N the equivalent emf is doubled, then E3N in V is

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