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Electronic Devices Practice Test 3

# Feedback Oscillator Principles Quiz Answers PDF - 3

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## Electronic Devices Quiz Online: Feedback Oscillator Principles MCQs - 3

MCQ: voltage gain around the closed feedback loop of oscillator must equal to

A) 1
B) 0
C) −∞
D) ∞

MCQ: In a Darlington pair configuration, if emitter resistance is 560 Ω and input resistance is 8.75M Ω then AC current gain will be

A) 25
B) 125
C) 321
D) 345

MCQ: For an n-channel E-MOSFET with gate to source voltage equals to 2 V, gate to source voltage to conduct must exceeds

A) 1 V
B) 2 V
C) 4 V
D) 6 V

MCQ: A nominal Zener voltage is usually specified in datasheet of Zener diode at a value of reverse current called

A) bench current
B) Zener test current
C) Zener reverse current
D) floating current

MCQ: Because of insulated gate present in MOSFETs, these are also called

A) JFETs
B) IGFETs
C) CMOS
D) PMOS