Get Ahead with Our Exam Q&A

Explore our extensive collection of questions and answers to enhance your learning experience and prepare for exams effectively

Efficiency of bridge rectifier is 81.2%

Ripple factor of half wave rectifier is 1.21

RMS value of sine wave is 0.707 Vm

In a common emitter amplifier, the input and output signals are in 180 degree out of phase.

Frequency response of an amplifier can be improved by negative feedback

The resistance of a diode is minimum when it is forward biased

p type semiconductor has excess of positive charge

In FM, SNR can be improved by lowering the frequency of the modulating signal, since the decrease in the modulating frequency increases the modulation index.
In Pulse Modulation, the modulation index depends only on phase deviation and not on modulating frequency.
So better SNR and hence less noise effect an be obtained in FM at lower modulating frequency.
AM systems are very sensitive to random noise.

Unit of capacitive reactance is ohm

the turns ratio of a transformer for matching 8 ohms impedance to 200 ohms is 1:5

Get Expert Advice for Free: Register for Your Free Consultation Now!

Full Name

Phone Number

Select Language

Select Course

[honeypot honeypot-100]