Electronics - Bipolar Junction Transistors (BJT) - Discussion
Discussion Forum : Bipolar Junction Transistors (BJT) - General Questions (Q.No. 12)
12.
The Q point on a load line may be used to determine:
Discussion:
24 comments Page 1 of 3.
Krishn Mohan said:
1 decade ago
Vb = Vcc - IcRc
V.Nath said:
1 decade ago
Since from load line we get values of Vcc and Ic, so ans is Ic, hence option D is correct.
Sandeep kr. gupta said:
1 decade ago
Load line drawn between Ic & Vcc at constant Ib. Ib is obtain from Vb hence Q point on a load line is used to determine Vb.
Shrishail said:
1 decade ago
We get Vce & Ic from dc load line not Vb.
Sukhpreet said:
1 decade ago
@ Mr. krishn mohan
Vce= Vcc-IcRc not Vb = Vcc-IcRc
Vce= Vcc-IcRc not Vb = Vcc-IcRc
Satya said:
1 decade ago
Krisna Mohan is right
Amit gupta said:
1 decade ago
@Satya.
Vb is the base voltage and IcRc is voltage across collector. So there is no relation of Vb in this formula Vce = Vcc-IcRc.
Vb is the base voltage and IcRc is voltage across collector. So there is no relation of Vb in this formula Vce = Vcc-IcRc.
Rohit dang said:
1 decade ago
For CE,
Q point signifies the conditions for bjt to be operated in either active cutoff or saturation regions.
And from commonly used diagrams.
Vce=Vcc-IcRc. And this is also the equation of load line in output characterstics (Ic vs. Vce).
Hence from q-point Vce, Ic can be obtained graphically.
But we can also find Vb from relation Vce+Veb+Vbc=0.
Q point signifies the conditions for bjt to be operated in either active cutoff or saturation regions.
And from commonly used diagrams.
Vce=Vcc-IcRc. And this is also the equation of load line in output characterstics (Ic vs. Vce).
Hence from q-point Vce, Ic can be obtained graphically.
But we can also find Vb from relation Vce+Veb+Vbc=0.
DIGVIJAY PANDEY said:
1 decade ago
Vc=Vcc-IcRc. SO CURRENT OPTION IS A
Harpal singh said:
1 decade ago
A load line is used to get quesent point which is Q(Vce,Ice).so in quetion ans. D is correct.............
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