Terminal Voltage In A Multi-Loop Circuit
A battery with internal resistance r is a component in a circuit with two loops. The loop currents, i₁ and i₂, both flow through the battery in the same direction. What is the terminal voltage, Vₜ, of the battery?
A
Vt = ε - r√(i₁² + i₂²)
B
Vt = ε - r(i₁ - i₂)
C
Vt = ε - r·max(i₁, i₂)
D
Vt = ε - r(i₁ + i₂), where i₁ and i₂ are currents in each loop
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