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Electronic Devices Certification Exam Tests

Electronic Devices Practice Test 19

# Electronic Devices and Circuits Quiz PDF: Questions and Answers - 19

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## Electronic Devices and Circuits Questions and Answers : Quiz 19

MCQ 91: LM317IC can operate as a

1. modulator
2. amplifier
3. inductor regulator
4. floating regulator

MCQ 92: If internal emitter resistance of BJT is 20 Ω and collector resistor of amplifier is 1200 Ω then voltage gain will be

1. 60
2. 1200
3. 12
4. 20

MCQ 93: 7906IC is a fixed regulator of

1. −5 V
2. −2 V
3. −6 V
4. −8 V

MCQ 94: When electron jumps to conduction band, a Vacancy is left in the

1. Valence band
2. conduction band
3. nucleus band
4. forbidden energy band

MCQ 95: Forward voltage drop of an LED is greater than

1. 0.5 V
2. 1.2 V
3. 2.4 V
4. 5 V

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