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Physical electronics devices and ics miscellaneous

Physical Electronics Devices and ICs

  1. What are the states of the three ideal diodes of the circuit shown in figure?


    1. D1 ON, D2 OFF, D3 OFF
    2. D1 OFF, D2 ON, D3 OFF
    3. D1 ON, D2 OFF, D3 ON
    4. D1 OFF, D2 ON, D3 ON
Correct Option: A

The given circuit (i.e., fig-1)
From given figure are conclude that both D1 and D2 are in forward bias and D3 is in reverse bias. But no current will flow through the diode D2. This is so because current gets shorted path through D1, as shown below (i.e., fig-2)
Hence,
D1 → ON
D2 → OFF
D3 → OFF



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