Transistor current gain β = I_C/I_B. Typical value range:
A. 1-10
B. 1000-5000
C. 20-200
D. 0.1-1
Answer: Option C
Solution (By JKExamLibrary)
BJT common-emitter current gain β typically 20-200. Small base current controls larger collector current. Memory aid: 'β = collector/base current ratio; value 20-200 for standard transistors'. Electronics parameter frequently tested in competitive exams.
Explanation:
Ohm's law applies to ohmic materials (metals) at constant temperature. Non-ohmic devices (diodes, filaments) have nonlinear V-I characteristics. Memory tip: 'Ohmic = linear V-I graph through origin; temperature must be constant'. Conceptual question testing Ohm's law limitations, frequently examined in competitive exams.
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