Analog Electronics - ECE Questions and Answers

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

A distorted sinusoidal has the amplitudes A₁, A₂, A₃ ... of the fundamental, second, harmonic third harmonic, ... respectively. The total harmonic distortion is

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

To obtain very high I/P and O/P impedances in a feedback amplifier, the topology used is

voltage series

current series

voltage shunt

current shunt

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

Efficiency of a half wave diode rectifier is less than 40%.

True

False

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

Generally op amp is used in

open loop

closed loop

cascaded loop

either (a) or (c)

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

The equivalent circuit of an op-amp has

a virtual ground at input

a virtual ground at output

virtual ground at input as well as at output

none of the above

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

In a transistor with normal bias

the emitter junction has a low resistance

the emitter junction has a very high resistance

the emitter junction supplies majority carries into the base region

none of the above

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

A transistor has

collector
emitter
base

In a N-P-N transistor the electron flow into the transistor at

I only

II only

II and III only

I and II only