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Which of the following statements is most correct to explain role of biasing circuit in the implementation of a transistor circuit?
If biasing is not done in an amplifier circuit, it results in ___________
A BJT biasing circuit is shown in the figure. The transistor is operating in the active region with VBE = 0.7 V. The value of collector current in mA is
Which of the following is not true regarding the output capacitor in the transistor biasing circuit?
If a transistor has a short circuit current gain of 25 and the capacitance measured in the hybrid-π model of the transistor was 60 pF. Then the threshold frequency of operation of the transistor is:
The disadvantage of base resistor method of transistor biasing is that it ___________
Transistor biasing represents ___________ conditions
Transistor biasing is generally provided by a ___________
Consider the biasing circuit shown. The β for the circuit is large. R3 = 1kΩ, R4 = 2kΩ. The stability factor varies between 10 and 11. Find the maximum and minimum values of R2.
In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident? 1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter. 2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters. 3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit. Select the correct answer using the code given below :