Q. Class A and Class B power amplifiers predominate at

View solution

Q. In a class C operation VCC = 30 V and VCE(sat) = 2 V. The efficiency is

View solution

Q. In a CE amplifier, the collector resistance is 6 kΩ and load resistance is 3 kΩ. The ac load resistance is

View solution

Q. A voltage tripler circuit uses

View solution

Q. An op-amp uses

View solution

Q. In voltage amplifiers, the load resistance

View solution

Q. The RC network of wein bridge oscillator consists of resistors and capacitors of values R = 220 kΩ and C = 250 PF Determine the frequency of oscillation

View solution

Q. Which of the following statement is correct?

View solution

Q. In a single stage differential amplifier, the output offset voltage is basically dependent on the mismatch of

View solution

Q. Which of the following amplifier circuits has highest input impedance?

View solution

Q. Which of the following device acts as an N-P-N and a P-N-P transistor connected base to base and emitter to controller?

View solution

Q. A differentiating amplifier has capacitor in the input path.

View solution

Q. Which of the following statement about TRIAC is incorrect?

View solution

Q. A half wave diode rectifier and full wave diode bridge rectifier both have an input frequency of 50 Hz. The frequencies of outputs respectively are

View solution

Q. Overall efficiency of class B amplifier is

View solution

Q. For a transistor to have-a larger β it must have and a

View solution

Q. JFET is also known as

View solution

Q. Drain feedback bias is often used with

View solution

Q. CMRR of a difference amplifier is equal to

View solution

Q. The ac collector current is nearly equal to

View solution