dc has no frequency.....because dc wave is just a straight line...it doesn't vary with respect to time....but frequency is with respect to time change...hence its zero

Akash Pal

Aug 18th, 2013

dc is not pure dc it is just filtered dc so it has 1.2 hz frequency

chandan

Sep 5th, 2013

frequency is cycles per second of any wave here dc is constant so there is no meaning of frequency

akd

Sep 17th, 2013

As we know a.c signal has frequency but d.c has no frequency.

nagarjuna

Sep 19th, 2013

DC voltage frequency is always zero.

Manikandan

Dec 22nd, 2013

dc voltage waveform is linearly so freq.is 0.

Ravindra Reddy

Jan 5th, 2014

for DC current the frequency is always Zero

Biswajit

Jan 22nd, 2014

in AC we have different magnitude at different places , but if we will go for DC there is no change in magnitude, so that there will be no matter of cycle, so the value of frequency is zero

shivam gupta

Mar 19th, 2014

ITS ARBITARY. AND DEPENDS ON THE REQUIREMENT, SUPPOSE THERE IS A SIGNAL= 5+ 3*SIN(2*pi*t) ..... THEN WHAT IS THE FREQUENCY OR TIME PERIOD OF THIS SIGNAL?.....
answer- T.P for sinusoidal signal is 0.5 sec and for dc signal i.e 5 T.P= same as the sinusoidal wave means 0.5 sec
so T.P of this signal is 0.5 sec....
... (any rectification ur welcome..)

pandya jay

Jun 20th, 2014

o or i think 50hz.

vinay vishwakarma

Jul 1st, 2014

there is no freq. in dc vtg.

RITU

Jul 4th, 2014

0 HZ

chandan mukherjee

Sep 13th, 2014

there are two types of DC .
(I) steady state DC
(ii) pulsating DC the frequency of pulsating DC is 2 times of ac frequency
but the frequency of steady state dc is zero.

Mukesh Rathi

Sep 25th, 2014

Frequecy of dc is zero .

RAVI KANTH

Jul 28th, 2015

Some frequency is there because how to pass current one place to another place?

## DC Voltage Frequency

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