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In ICEO, wt does the subscript ‘CEO’ mean?(a) collector to base emitter open(b) emitter to base collector open(c) collector to emitter base open(d) emitter to collector base openI have been asked this question in class test.This interesting question is from The Common Emitter Configuration in section Transistor Characteristics of Electronic Devices & Circuits

Answer»

Correct option is (c) collector to emitter base open

Easiest EXPLANATION: The subscript ‘CEO’ means that it is collector to emitter base open. It is CALLED as the leakage current. It occurs in a REVERSE BIAS in PNP transistor. The total current can be calculated by IC=βIB+IC.



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