In the circuit shown, the current through the ideal diode is :

75mA

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20mA

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100mA

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25mA

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Solution

The correct option is D 25mA
The given diode is ideal and forward biased so there is short circuit. No current flow through the $20 Ω$ and whole current flow through the short circuit.
The current flow through the circuit is,
$I = \frac{2 V}{80 Ω} = 25 m A$
The correct option is D.

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