A bipolar differential amplifier uses a transistor having β0 = 200, ICQ = 100 mA, |Adm| = 500 and CMRR = 80 dB. The value of Rc and RE will be respectively __________ .-A-1.25 kΩ, 1.25 MΩB-125 kΩ, 1.25 MΩC-1.25 MΩ, 1.25 kΩD-3.25 kΩ, 3.25 MΩ-A-1.25 kΩ, 1.25 MΩ

Question

A bipolar differential amplifier uses a transistor having &beta;0 = 200, ICQ = 100 mA, |Adm| = 500 and CMRR = 80 dB. The value of Rc and RE will be respectively __________ .-A-1.25 k&Omega;, 1.25 M&Omega;B-125 k&Omega;, 1.25 M&Omega;C-1.25 M&Omega;, 1.25 k&Omega;D-3.25 k&Omega;, 3.25 M&Omega;-A-1.25 k&Omega;, 1.25 M&Omega;

APTITUDE CRACK · Accepted Answer

The correct option is  A 1.25 k&Omega;, 1.25 M&Omega;  80 = 20 log CMRR ∴ CMRR = 10000 But CMRR = 2gmRE ∴ = 1.25 MΩ Adm = gmRC = 1.25 KΩ.

Exam Questions Papers

Q1: A bipolar differential amplifier uses a transistor having β₀ = 200, I_CQ = 100 mA, |A_dm| = 500 and CMRR = 80 dB. The value of R_c and R_E will be respectively __________ .

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Exam Questions Papers

Q1: A bipolar differential amplifier uses a transistor having β0 = 200, ICQ = 100 mA, |Adm| = 500 and CMRR = 80 dB. The value of Rc and RE will be respectively __________ .

Solution

For help Students Orientation Mcqs Questions

Q1: A bipolar differential amplifier uses a transistor having β₀ = 200, I_CQ = 100 mA, |A_dm| = 500 and CMRR = 80 dB. The value of R_c and R_E will be respectively __________ .

For help Students Orientation
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