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Two junction diodes, one of germanium (...

Two junction diodes, one of germanium `(Ge)` and other of silicon `(Si)` are connected as shown in fig to a battery of `12 V` and a load resistance `10 kOmega`. The germanium diode conducts at `0.3 V` and silicon diode at `0.7 V`. When current flows in the circuit, the potential of terminal `Y` will be
.

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The `Ge` diode conducts for a `p.d` of `3 V`, therefore the current passes through it and the `Si` diode do not conduct. Hence the potential of terminal `Y = 12 - 0.3 = 11.7 V`.
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