What do you mean by 3 dB cutoff frequency? Why is it 3 dB,
not 1 dB?
Answer Posted / piyush
In electronics communication power gain is of great importance
ie Pout/Pin. This gain is expressed in Db ie
gain(Db)=10log10(Pout/Pin).
when the pwr ratio goes to 1/2
Pout/Pin=1/2
at this situation the the gain is -3Db beyond this the
output signal pwr falls to that extent that it becomes
useless thats why we consider 3Db cutoff frequency....
Is This Answer Correct ? | 35 Yes | 6 No |
Post New Answer View All Answers
i want computer associates placement papers from u? pls post to me.
Tell me why bjt is called current control device?
The function of a transistor used in any of the ics is to perform switching action and not amplification. Then why diodes are not used instead of transistors as diodes also exhibit the same switching action?
Name some of the current controlled (current driven) devices?
Which oscillator is best for general purpose?
Explain to find conductivity?
How to format a memory card by using memory card?
I am completed B.E(ece) and i have 3 years of experience in HT line , is there any chance to ger c license please guide me Thanks & regards 965550212U
list the broad classification of adcs.
What is the difference between Synthesised Frequency Hopping and Base Band Frequency Hopping?
steps which are performed in the bios POST codes
Hi Friends, I am preparing for Airport authority of India ,so please forward me question papers and questions that are generally asked in test. my email ID is :jitinkumar_micro@rediffmail.com
Why is space region called the depletion region?
how to write test cases?
What is a half-adder?