contestada

Under what conditions current passing through the resistance R can be increased by short circuiting the battery of emf E₂? The internal resistances of the two batteries are r₁ and r₂ respectively.
A. E₂r₁>E₁(R+r₂)
B. E₁r₂C. E₂r₂D. E₁r₁>E₂(r₁+R)