As compared to a BJT amplifier, an amplifier made using a JEET is likely to have
Select an option to see the answer and solution.
ECE · all questionsAnalog Electronics
Analog Electronics
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
377
Questions
4/19
Page
Pick an option on a question to see the right answer and solution.
The bandwidth of a Class C amplifier decreases when the
Select an option to see the answer and solution.
Consider a single stage tuned amplifier having 3 dB bandwidth of 100 kHz. Determine the bandwidth if two such single tuned amplifiers are cascaded:
Select an option to see the answer and solution.
The amplifier which retains the shape of the input signal at the output are called-
Select an option to see the answer and solution.
The circuit of the figure is an example of feedback of the following type
Select an option to see the answer and solution.
In a typical 555 astable multivibrator circuit, if RA = RB = 2.2 kΩ and C = 0.1 µF then the free-running frequency is:
Select an option to see the answer and solution.
Match List-I with List-II and select the correct answer using the options given below the lists:
| List-I | List-II |
| a. RC coupling | 1. Higher voltage gain & impedance matching |
| b. Inductive coupling | 2. Ability to amplify dc and low frequency signals |
| c. Transformer coupling | 3. Minimum possible non-linear distortion |
| d. Direct coupling | 4. Low collector supply voltages can be used |
Select an option to see the answer and solution.
The drain of an N-channel MOSFET is shorted to the gate such that VGS = VDS. The threshold voltage (VT) of MOSFET is 1 volt. If the drain current (ID) is 1 mA for VGS = 2 V, then for VGS = 3 V, the drain current ID is-
Select an option to see the answer and solution.
In the circuit shown in figure below, β for the BJTs is 99.
Assuming the thermal voltage to be 50 mV, the input resistance Ri is:
Assuming the thermal voltage to be 50 mV, the input resistance Ri is:
Select an option to see the answer and solution.
When a voltage divider biased amplifier has its Q-point near to the middle of the dc-load line, what is the maximum unclipped peak-to-peak output voltage?
Select an option to see the answer and solution.
The low frequency gain of LPF shown is
Select an option to see the answer and solution.
The bandwidth of a double tuned transformer coupled amplifier can be adjusted by varying the
Select an option to see the answer and solution.
The amplifier circuit shown below uses a silicon transistor. The capacitors CC and CE can be assumed to be short at signal frequency and the effect of output resistance r0 can be ignored. If CE is disconnected from the circuit, which one of the following statements is TRUE?
Select an option to see the answer and solution.
The current gain of bipolar transistor drops at high frequency because of
Select an option to see the answer and solution.
Most of the linear ICs are bases on two transistor differential amplifiers because of
Select an option to see the answer and solution.
An amplifier has an open loop gain of 1000±10. Negative feedback is provided such that the gain variation remains within 0.1%. What is the amount of feedback βF?
Select an option to see the answer and solution.
For the circuit given below, the voltage V0 across the op-amp output is:
Select an option to see the answer and solution.
In phase-shift oscillator, a single RC network introduces a phase change of
Select an option to see the answer and solution.
The feedback factor β for a voltage shunt feedback amplifier is given by
Select an option to see the answer and solution.
Which of the following principles is applied while designing the output matching network for a high power Class-C amplifier?
Select an option to see the answer and solution.