The shown circuit contains diodes and resistors. Find the current through 2 Ω resistance R₁.
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Question

The shown circuit contains diodes and resistors. Find the current through 2 Ω resistance R₁.

G1 Physics · Accepted Answer

For ideal diodes, determine which branches are conducting from the polarities of the 10 V source and diode orientations. In the source diagram, diode D₁ is conducting and D₂ is nonconducting, so the indicated R₁ branch carries the forward-path current. Using the resistor network shown gives I₁ = 2.5 A. Final answer: Option A; circuit calculation should be rechecked with the source drawing.