Electronic Design
D.C current of a half wave rectifier is _____.Here, Im = peak value of the input current.
An Emitter follower is used for _____.
The alpha of a transistor is _____.
In a class-B power amplifier, the output signal is obtained only _____.
The transformer is used for impedance matching . It is expected to match 1296Ω resistance on the primary side to a 16Ω resistance on the secondary side. Calculate the required turn ratio of a transformer, what is the type of transformer?
For insulators, the forbidden gap is of the order of _____.
After triggering an SCR , the gate pulse is removed. the current in the SCR will _____.
The loop gain of the oscillator to start with is _____.
The gain of an inverting operational amplifier is given as _____________.
In a complementary – symmetry amplifier, both transistors are used in the ____ configuration/s
The latching current of an SCR is _____.
A bridge rectifier circuit has secondary voltage of 12Vr.m.s. Assume secondary resistance and diode forward resistance to be negligible. The load resistance is 100Ω. What would be the peak load current?
A crystal oscillator provides very stable frequency because of _____.
In a Wien-bridge oscillator with R=5KΩ and C=0.01µF, the frequency of oscillation will be _____.
The transistor equivalent of the thyratron tube is _____.
What would be the input impedance of an ideal op-amp?
The application where one is most likely to find a quartz oscillator would be _____.
The most important characteristic of a crystal oscillator is _____.
Negative Feedback in amplifiers increases _____.
If the RF signal is 600 KHz and the local oscillator frequency is 1000KHz, the output of the mixer will be _____.
A differentiator converts a linear ramp into a _____.
Which one of the following amplifiers has the highest efficiency?
Suppose the anode current of a conducting SCR is 50A. If its gate current is reduced to one-fifth, its anode current will become _____.
Refer to the given image:The voltage at V1 and V2 of the arrangement shown in the image, will be _________ respectively.
For designing a Push-Pull amplifier, the type of transistors should be _____.
An amplifier has a bandwidth of 200KHz and a voltage gain of 100. What will be the new bandwidth if 5% negative feedback is introduced?
Which semiconductor power device out of the following is not a current triggered device?
In an amplifier , the coupling capacitors are employed for _____.
Which one of the following is a general purpose operational amplifier?
Which of the following does not cause permanent damage to an SCR?
An operational amplifier can amplify ____________.
An oscillator is a _____.
The voltage gain of an amplifier without feedback is 60dB. It decreases to 40dB with feedback. What will be the feedback factor?
Electro___________ is a procedure that destroys tissue by burning with an electric spark.
The output impedance of an operational amplifier is _____.
In a negative feedback circuit , the feedback factor is always between _____.
An emitter follower is found to have a voltage gain of 0.99. What would be the value of ß for its transistors?
An amplifier has a gain of 10 without feedback. To make it oscillate, ß must be _____.
A Wien-bridge oscillator is basically a _____.
A transistor is a semiconductor switch which is _____.
Which of the following devices uses negative feedback?
A Colpitt’s oscillator uses _____.
In a half wave rectifier, the maximum firing angle is restricted to _____.
An ideal amplifier has the _____.
An Oscillator has _____.
What would be the increase in the power delivered to the load if the total harmonic distortion is 10%?
For generating a 1 KHz signal, the most suitable circuit is the _____.
Which one of the following amplifiers is designed to operate digital signals?
For a class-A power amplifier, the position of point Q is _____.
One of the ways to destroy a diode is _____.