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Electronic Devices Certification Exam Tests

Electronic Devices Practice Test 17

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## 555 Timer as Oscillator Questions and Answers : MCQ 17

MCQ 81:

In astable mode of 555 timer, control pin is decoupled by

1. resistor
2. inductor
3. capacitor
4. supply
MCQ 82:

PIV of bridge rectifier for practical diode (2 diodes) model is equals to

1. peak output voltage-0.7 V
2. peak output voltage+0.7 V
3. peak secondary voltage-1.4 V
4. peak secondary voltage+1.4 V
MCQ 83:

Typical open circuit voltage for both forward and reverse biased condition is approximately

1. 0.6 V
2. 0.7 V
3. 2.6 V
4. 2.7 V
MCQ 84:

Amplifier voltage gain is expressed in

1. meters
2. hertz
3. decibels
4. baud
MCQ 85:

If capacitor is determined by parameters of plate area 'A', dielectric constant 'E' and dielectric thickness 'd', then capacitance will be

1. AEd
2. AE/d
4. Ed/A

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