A transistor is a semiconductor device used to ….. or….. electrical signals and power.

what is the type of those transistors respectvly?

Tell me the image

IC≈…

VBE=…

IE=

ß=

Alpha(α)=

Remember this

ICEO (the collector-to-emitter current with the base leg open) =

.•. IB≈0

Because ……..

Remember this

Tell me the relation that connects Alpha with Beta

Various types of general-purpose or switching transistors:

(a) ……

(b) …..

(c) ….

What is the cutoff region in a BJT common-emitter configuration?

A) The collector current is at its maximum

B) The base current is zero

C) Both junctions are forward-biased

D) The collector-emitter current is very high

The common-collector configuration is used primarily for impedance matching purposes since it has a …. input impedance and …. output impedance,

opposite to that of the common-base and common-emitter configurations.➢ The output characteristics of the common-collector configuration are the same as for the ……. configuration

What happens in the saturation region of a BJT?

Explanation: In the saturation region of a Bipolar Junction Transistor (BJT): 1. Both the base-emitter junction and the base-collector junction are forward-biased.

2. The transistor conducts heavily, and the collector current (Ic) reaches its maximum value, limited primarily by the external circuit.

3. The transistor is "fully on," acting like a closed switch.

What does a transistor tester measure?

Q point is consder ….

Type one of question part one

1. What is the type of this circuit 👇👇

2. And what is the value of VE in it

Remember this

= -12+IBx240x1000+0.7=0

.•. IB=✔️

= -VCC+ICxRC+VCE=0

= -12+(2.35x10^-3)x2.2x1000+VCE=0

.•. VCE=✔️

Note very important

In saturation point ic=0

And in cutoff

REMEMBER THIS ANSWRS ARE Q POINT

1. Q point changing represented by ……

Type Two of question

1. What is the type of this circuit

   Tell me IB and VC and VE (when write one symbol means the symbol and the ground)

Type three of question

1. What is the type of this circuit and solve this👇👇 by Exact method

Tell me what is the IB

_____________________________

1. Solve same question by using approximatemethod but Tell me the condition law which tell you if you can solve it by this method or not

Remember very important

At saturated VCE=….

Type one of question part two

What is the value of X from the opposite figure 👇👇

1. VCC

2. IC saturation (sat)

3. At sat VCE =….

4. So RC =….

5. IBQ=…..

VCC in Saturation or Cuttoff or at Q point is always …..