Interested to Buy Any Domain ? << Click Here >> for more details...
what is the frequency of direct current(dc)?
- 12 Answers
- 38772 Views
- Cognizant, University, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / isda
The dc current which come direct from battery , cells is
Usually be steady current and freq zero
but the dc current which come from convert ac current is
always has ripple depend on the capacitance which use in the
bridge so this dc current may be has very small frequency
| Is This Answer Correct ? | 58 Yes | 14 No |
Frequency is the reciprocal of time period. Time period is
one which gives the information of quantity varying with
respect to time. In DC current the quantity doesn't varies
with time, where as in AC systems it varies from positive
max to negative max. Hence DC current do not have any frequency.
| Is This Answer Correct ? | 29 Yes | 4 No |
Answer / sand
direct current(pure) does not change with time, so we can't
define a particular value of time period for the d.c quantity.
(That is, it does not change up to infinite amount of time)
As we know that frequency is the reciprocal of time period,
frequency of d.c will be ( 1/ infinite ) = 0
| Is This Answer Correct ? | 17 Yes | 2 No |
Answer / siva sai krishna marthy
dc supply has infinite time period and zero frequency
| Is This Answer Correct ? | 8 Yes | 1 No |
Answer / rez
If a vsd has an AC input please explain what the 'pot ' is
doing to the voltage and input freq as the resistance
increases and decreases . what happens to the frequency. and
yes i agree dc has no freq .
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / amina
Frequency,as regards voltage, is the term applied to changes in voltage per unit time.As the voltage in DC does not changes,as it changes in AC periodically. Hence, DC has zero Hurtz frequency....
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / p sateesh
dc power is unidirectional in nature irrespective of timeperiod bcz of there z no alternation as well as f is inverse propotion of time period
| Is This Answer Correct ? | 1 Yes | 1 No |
can anyone please help me to find the rupturing or breaking capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT and LT side of a distribution transformer...please help with detailed step by step answer...thank you
ct connection of energy meter
-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.
How to calculate HV Cable Sizing & what are the factors to be considered for selection?.
how much LT load can bear by the 100 KW HT connection.
Why sip ring used in ac motor also why its not used in dc motor?
what will happen when the dc supply is given to the capacitor?
what is the difference between EMF and potential difference??
What is Annunciation?
How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me
plzzzzzzzzz plzz send me the papers of JSPL WRITTEN TEST..SO that i can prepare for the test in electrical engg..
How we find the size of cable if we know the current
-
Civil Engineering (5086) - Mechanical Engineering (4456)
- Electrical Engineering (16639)
- Electronics Communications (3918)
- Chemical Engineering (1095)
- Aeronautical Engineering (239)
- Bio Engineering (96)
- Metallurgy (361)
- Industrial Engineering (259)
- Instrumentation (3014)
- Automobile Engineering (332)
- Mechatronics Engineering (97)
- Marine Engineering (124)
- Power Plant Engineering (172)
- Textile Engineering (575)
- Production Engineering (25)
- Satellite Systems Engineering (106)
- Engineering AllOther (1379)
