ohms law is applicable for dc or ac current or for both???
explain it berifly??
Answers were Sorted based on User's Feedback
Answer / krishna
ohm law can apply in both ac & dc
in dc : V=IR
in ac : V=IZ (where assume z = r)
| Is This Answer Correct ? | 8 Yes | 2 No |
Answer / e.subhash
cant use every place some limitation is there.
Ohms law is most applicable for only DC system.
As per Ohms Law I = V/R , V=IR AND R=V/I
In DC power system only resistance come to circuit
In AC system resistance,capacitance and inductance come to circuit.
so here Instead of R considered Z (impedance) Z= R+XL+XC.
| Is This Answer Correct ? | 0 Yes | 0 No |
If the 11 KV supply is fail. what will happened with it's breaker if it is supplay to the 11KV motor?
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
How can remove the jerks on genretor due to remov or connecting the load ?
how we identify between current transformer and potential transformer without having it name plate?
what is the difference beteen differential protection and over current protection of an alternator
why swityard is necessrry requirement in any bis power distributin systems?
what will happen if OLR CT in all phases are short circuted
In case of legging current of 20°, pf is .94 and leading of 20°,pf is .94 , in mathematicaly both are same but in realy how it is differ ?
What is erection of electrical system?
how unidirectional torque is produced in DC motor?
In distribution transformers, fuse wires are very thin when compared to conductor size. How it's possible?
can we use 3 phase UPS for Motors and Other Machines
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)