The input and Base are connected to VccVccVcc• Base-Emitter voltage Vag> 0.7v• Base-Emitter junction is forward biased• Base-Collector junction is forward biased• Transistor is "fully-ON" ( saturation region)• Max Collector current flows (lc = Vcc/R)RRVod =o VatR.VotSwitch"closed• VCE = 0 ( ideal saturation)• VouT= Vcg = "0"OvOv• Transistor operates as a "closed switch"Fig 4Procedure1- Connect the circuit as in fig (5)2- Take R1=10k or 1000k„RL= 680 ohmRB=100 ohmT=2N2222VCC=12V ,any LED.3- With avoltmeter measure IB,IC,VCE in cutoff and saturation.4- Take the switch off and use ac rectangular input signale with aproporate voltageto oporate the circute.+ 12vCurrentLimitingResistorSwitchRSingle orLED ArrayRReIBMotor Lamp HeaterVN OBDifferent CollectorLoadsNPNOvDiscussion1- Explain two application to uses the transistor as switch.2- Explain what happen if you touch the RB terminale.3- Replace the switch by (LDR) and set the circuite to operate as light detector.4- Change the circuite in (4) to operate as dark detector.

The given manual is a lab based experiment in which you have to perform the experiment in laboratory…

Answered: 1- Explain two application to uses the…

Engineering

Electrical Engineering

1- Explain two application to uses the transistor as switch.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Question

The input and Base are connected to Vcc
Vcc
Vcc
• Base-Emitter voltage Vag> 0.7v
• Base-Emitter junction is forward biased
• Base-Collector junction is forward biased
• Transistor is "fully-ON" ( saturation region)
• Max Collector current flows (lc = Vcc/R)
R
R
Vod =
o Vat
R.
Vot
Switch
"closed
• VCE = 0 ( ideal saturation)
• VouT
= Vcg = "0"
Ov
Ov
• Transistor operates as a "closed switch"
Fig 4
Procedure
1- Connect the circuit as in fig (5)
2- Take R1=10k or 1000k
„RL= 680 ohm
RB=100 ohm
T=2N2222
VCC=12V ,any LED.
3- With avoltmeter measure IB,IC,VCE in cutoff and saturation.
4- Take the switch off and use ac rectangular input signale with aproporate voltage
to oporate the circute.
+ 12v
Current
Limiting
Resistor
Switch
R
Single or
LED Array
R
Re
IB
Motor Lamp Heater
VN O
B
Different Collector
Loads
NPN
Ov
Discussion
1- Explain two application to uses the transistor as switch.
2- Explain what happen if you touch the RB terminale.
3- Replace the switch by (LDR) and set the circuite to operate as light detector.
4- Change the circuite in (4) to operate as dark detector.

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