What do you mean by 3 dB cutoff frequency? Why is it 3 dB,
not 1 dB?
Answer Posted / db
That's wrong.
3 dB implies 1/2 the power and since the power is
proportional to the square of voltage, the voltage will be
0,707 of the passband voltage.
sqrt(0.5) = 0.707
| Is This Answer Correct ? | 207 Yes | 13 No |
Post New Answer View All Answers
what is the source of time varying electric field?
What is the distance from an RF Transmitter that output power is determined?
For a 1φ voltage controller, feeding a resistive load, draw the waveforms of source voltage, gating signals, output voltage and voltage across the scr. Describe the working with reference to waveforms drawn?
i need ongc engineer trainee electronic test questions
Explain what are the universal logic gates?
I gave interviews for infosys and accenture in my college after which my college said I was selected in infosys. After some days I got a mail from accenture that we have dispatched the offer letter to ur college. I talked to my training officer and he is not ready to give me my letter. So how do i contact them to get my letter online ?
How to make a robo car .Please give me whole theory ,photos of circuits etc. on my e-mail id.
What is the necessity of heat sink?
sir, pls send me 5 year previous question papers of RRB- Junior Engineer-GrII to my mail id
Define what is its magnitude for ge and si?
Draw the circuits of cb, ce and cc configurations using npn transistor.
What is a scrambler? Explain its operation
What are the shortcomings of a multimeter?
Define hard-driving or over-driving?
self supporting course and sandwich course are same