QUESTION 3 2 pointsSave Answer A practical means of obtaining complementary oper

Question

QUESTION 3 2 pointsSave Answer A practical means of obtaining complementary operation while using the same, matched npn transistors for the output is provided by a quasi- complementary circuit, as shown in the figure below. The push-pull operation is achieved by using complementary transistors (Q1 and Q2) before the matched npn output transistors (Q3 and Q4). What is the purpose of the variable resistance R2 regarding the circuit operation? (Select the one best answer from the choices given below.) Vcc Ci Input Output VT Ca

Explanation / Answer

(a)the adjustable resistoris used to the bias the both transistor pairs on the verge of conduction,by superimposed thecapcitor C1 and C2 voltage to bias the transistorpair.so the answer isA

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