@Naman Agarwal • 17 Aug, 2012
how can we proove that the frequency of dc is zero???
@Abhishek Rawal • 17 Aug, 2012 • 1 like In Direct current, current/voltage doesn't change with time, hence frequency (f) = zero.

@Ramani Aswath • 17 Aug, 2012 • 3 likes Frequency = (number of changes/sec), in this case the number of times the voltage changes.
A pure DC is constant. So number of changes = 0.
0/secs = 0.
However if you have a DC with a wave form such as square wave, saw tooth or even a single phase full wave rectified unfiltered DC there will be a frequency, which will be the numbers of peaks/sec.
@Jeffrey Arulraj • 14 Oct, 2012 to experimentally verify this use a circuit having a source and capacitor in series to it

Measure the voltage across the capacitor if it varies then the source is AC but if it is stable at the input voltage it is DC supply

Related Posts

I thought of compiling a list of the coolest and the best whatsapp group names that you've been using for your respective groups. For the sake of convenience, we'll stick...
A simple good bye email or last working day mail ain't cool! We've some awesome templates that you can use. If you're looking for an amazing Last Working Day email...
Hello CEans, How to convert CGPA (10 Point Scale) to Percentage? Please help!
I heard many students are having a trouble registering on the TCS Portal, when it's quite straightforward actually. If you have problem in attaching photos or CV, Use internet explorer...
What is IES or Indian Engineering Services Exam? Union Public Services Commission (UPSC) conducts the Engineering Services Exam or ESE 2016 is an entrance exam for graduates who wish to...