Two identical parallel branches are connected across a 5 V ideal battery. Each branch contains an ideal diode in forward direction and a 20 Ω resistor in series. Find the current through the battery.
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Question

Two identical parallel branches are connected across a 5 V ideal battery. Each branch contains an ideal diode in forward direction and a 20 Ω resistor in series. Find the current through the battery.

G1 Physics · Accepted Answer

Both ideal diodes are forward biased and act as short circuits. Each 20 Ω branch carries 5/20=0.25 A. Total battery current=0.25+0.25=0.50 A.