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Electronics — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsElectronics1 Mark
Question

A semiconductor X is made by doping a germanium crystal with arsenic (Z = 33). A second semiconductor Y is made by doping germanium with indium (Z = 49). The two are joined end to end and connected to a battery as shown. Which of the following statements is correct

(a) X is P-type, Y is N-type and the junction is forward biased

(b) X is N-type, Y is P-type and the junction is forward biased

(c) X is P-type, Y is N-type and the junction is reverse biased

(d) X is N-type, Y is P-type and the junction is reverse biased
✓

Answer

(d) X is N-type, Y is P-type and the junction is reverse biased

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