Difference between Ac and DC
1. Direct Current (DC):
Q . What is steady D.C. ( Direct. Current ).
Q. What is Pulsating D.C. (Direct Current ).
2. Alternating Current (A.C.)
10 difference between A.C. and D.C.
|Alternating Current (AC)||Direct Current (DC)|
|1. Alternating Current changes it's direction regularly||1.Direct Current flow in One Direction Only|
|2.The Magnitude of D.C Varies with Time||2.The Magnitude of A.C. does not Varies with|
|3. Alternating Voltage can be stepped up or|
stepped down easily
|3.D.C. Supply can't be step up or step down easily|
|4.A.C. Power can be easily transmitted from one place to another place||4.D.C. Power at high voltage can not be easily transmitted from one place to another|
|5.In India frequency of A.C. is 50 HZ.||5.Frequency of D.C. is Zero|
|6.Skin effect occur in A.C. System.|
Hence Conductor resistance is increased
|6.In D.C. System there is no skin effect occurs|
|7.A.C. Power can be generated at high Voltage. i.e. 11 K.V. & 33 K.V||7.D.C. Power can not be generated at high Voltage|
(Due to commutation problem )
|8.In A.C. System voltage drop is comparatively||8.In D.C. System comparatively less voltage drop because in d.c. there is no effect of Inductive|
|9.In A.C. System at high voltage corona loss is large||9.In D.C. system ,at high voltage corona loss is small|