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Electronic Devices Practice Test 148

# 555 Timer as Oscillator Multiple Choice Questions (MCQ) PDF - 148

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## 555 Timer as Oscillator Questions and Answers : Quiz 148

MCQ 736: 555 timer functions as a "one-shot" pulse generator at

A) astable mode
B) monostable mode
C) bistable mode
D) tristable mode

MCQ 737: If turn ratio is equals to one then secondary voltage of transformer is

A) less than primary voltage
B) greater than primary voltage
C) equals to primary voltage
D) infinite in nature

MCQ 738: If base current is 50µA and collector current is 3.65mA then DC current gain will be

A) 43
B) 73
C) 24
D) 56

MCQ 739: For germanium, mobility of holes is

A) 2.33
B) 2.77
C) 3.33
D) 3.77

MCQ 740: Capacitance is produced in Varactor diode in region of

A) n type
B) p type
C) depletion
D) conduction

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