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Electronic Devices Practice Test 94

# Introduction of 555 Timer MCQ (Multiple Choice Questions) PDF - 94

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## Introduction of 555 Timer Questions and Answers : Quiz 94

MCQ 466: In 555 timer, control access is present at pin

A) 4
B) 5
C) 6
D) 8

MCQ 467: DC current gain of BJT ranges from less than

A) 50
B) 40
C) 30
D) 20

MCQ 468: To operate as an amplifier, base collector junction of BJT must be

A) forward biased
B) reverse biased
C) floating biased
D) None of these

MCQ 469: Types of reverse breakdown in Zener diode are

A) two
B) three
C) four
D) five

MCQ 470: Forward current for practical diode model is

A) VbiasR
B) ( Vbiasing- VForward)/R
C) ( Vbiasing- VForward)
D) R( Vbiasing- VForward)

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