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Question
A Si and a Ge diode has identical physical dimensions. The band gap in Si is larger than that in Ge. An identical reverse bias is applied across the diodes
Options:
A .  The reverse current in Ge is larger than that in Si          
B .  The reverse current in Si is larger than that in Ge
C .  The reverse current is identical in the two diodes          
D .  The relative magnitude of the reverse currents cannot be determined from the given data only
Answer: Option C
:
C
When a diode is reverse biased, then the applied voltage supports the barrier voltage. Due to it, the reverse current is weak. It will be identical in two diodes.

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