Interested to Buy Any Domain ? << Click Here >> for more details...
What is the difference between Ac curent & DC current
- 2 Answers
- 6627 Views
- Juniper Networks, I also Faced
- E-Mail Answers
Answer Posted / amit kumar singh
The major differences in AC and DC are as follows:
1)The magnitude of DC does not change as long as load and
source voltage remain same and its mgnitude depends only on
resistance of load. But, in AC it varies as a function of
cosine and its magnitude depends on Impedence (R+jX) of the
load.
2)DC flows in only one direction in a circuit, but AC
changes its direction every half cycle.
3)Due to variable magnitde and direction of AC (oscillating
nature), it has a frequency of oscillation. But, DC has no
frequency (i.e. f=0).
4)AC has Skin Effect (i.e., it flows more at the surface of
conductor and lesser inside the conductor which is the
effect due to its frequency). But, as DC has zero
frequency, it flows throughout the volume of the conductor.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
HOW TO CALCULATE S/C,O/C,E/F OF ACB.
In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.
what is the maximim current drawn by 1 phase and three phase welding machine
I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.
What are the limitations of Kirchoff's laws?
Determine a suitable number of slors and conductors per slot for the starter 1 winding of a 3 phase, 3300 V. SO Hz 300 rpm alternator. The diameter is 2.3 m
I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.
What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating
do we use neutral grounding for resistive balanced load? if we use what happen?
In aerodynamic turbines which element is NOT there a.stator b.compressor c. Fuel intake system d.fans
What is Faraday's law
if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?
What is EHT tariff or Power factor Tariff ????
What is the Surge suppresor? Why using in a UDB's and How it works?
How do i perform grounding of star point of Genset (400V) for making connection with step up transformer of DELTA-DELTA (400V to 20KV) ? while Genset itself has its own neutral and grounding bus bar inside genset breaker box whereas we have another neutral and grounding busbar in synchronizing panel next to genset at maximum distance of 6meter, would someone pls advice if we can only perform neutral grounding in synchronizing panel or should we ground neutral on both places inside genset breaker box and synchronizing panel.
