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Physics - Semiconductors Question with Solution | TestHub

PhysicsSemiconductorsPN junctionMedium2 minPYQ_2021
PhysicsMediuminteger

The circuit contains two diodes each with a forward resistance of50 Ωand with infinite reverse resistance. If the battery voltage is6 V, the current through the120 Ωresistance is _______mA

Answer:
20
Solution:

In this circuit D1 will be forward bias and D2 will be revers bias.

There will be no current through D2 and R2

Apply KVL in circuit we get

+6-50i-130i-120i=0

i=6300 A=6300×1000 mA

20 mA

Stream:JEESubject:PhysicsTopic:SemiconductorsSubtopic:PN junction
2mℹ️ Source: PYQ_2021

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