Electronic Devices - DC Biasing-BJTs - Discussion
Discussion Forum : DC Biasing-BJTs - Filling the Blanks (Q.No. 19)
19.
In a fixed-bias circuit, the magnitude of IC is controlled by and therefore is a function of ________.
RB
RC
RB and
Discussion:
2 comments Page 1 of 1.
Millize said:
4 years ago
In a fixed bias circuit, Ib = (Vcc-Vbe)/Rb and Ic = βIb ; Substituting the value of Ib.
Ic = β((Vcc-Vbe)/Rb)) Thus Ic is a function of both Rb and β.
Ic = β((Vcc-Vbe)/Rb)) Thus Ic is a function of both Rb and β.
Tejasvini Thakral said:
7 years ago
Yes, option D is correct because when we will find the current for fixed bias. The formula will come out to be as:
Ic= b (Vcc/Rb).
Where b refers tO β.
Ic= b (Vcc/Rb).
Where b refers tO β.
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