STANDARDPhysics-Current Electricity
STANDARD Physics Combination of Cells MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Two batteries of emf ε₁ and ε₂ (ε₂ > ε₁) and internal resistances r₁ and r₂ respectively are connected in parallel as shown in figure.
A
The equivalent emf εeq of the two cells is between ε₁ and ε₂, i.e., ε₁ < εeq < ε₂.
B
The equivalent emf εeq is smaller than ε₁.
C
The εeq is given by εeq = ε₁ + ε₂ always.
D
εeq is independent of internal resistances r₁ and r₂.
Correct Answer
Option A
Detailed Explanation
The equivalent emf εeq of the two cells is between ε₁ and ε₂, i.e., ε₁ < εeq < ε₂.
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