The circuit has two oppositely connected ideal diodes in...

The circuit has two oppositely connected ideal diodes in parallel. What is the current flowing in the circuit?
(A) $1.33 \mathrm{~A}$
(B) $1.71 \mathrm{~A}$
(C) $2.00 \mathrm{~A}$
(D) $2.31 \mathrm{~A}$

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Key Concepts

Ideal Diode Model

The ideal diode model assumes that a diode behaves as a perfect conductor when forward-biased and as a perfect insulator when reverse-biased. This simplification ignores real-world effects such as voltage drop and leakage current, allowing for straightforward circuit analysis by treating diode conduction as a binary state.

Oppositely Connected Diodes

Arranging two diodes in parallel but oriented in opposite directions ensures that regardless of the polarity of the applied voltage, one of the diodes will always be forward-biased, allowing current to flow. This configuration is often used in circuits to protect against reverse voltage or to create bidirectional conduction paths.

Circuit Analysis with Kirchhoff's Laws

Using Kirchhoff's laws, particularly the current law (KCL) and the voltage law (KVL), is essential for analyzing circuits that include diodes. Identifying which diode is conducting based on the applied voltage allows one to apply these laws to determine the distribution of current and voltage throughout the circuit, ultimately leading to the calculation of the overall current flow.

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