difference between ac and dc
- 10 Answers
- 13266 Views
- Alstom, BPL, Ford, HCL, Wipro, I also Faced
- E-Mail Answers
Answer Posted / electrokarz
* AC can be stepped-up or stepped down efficiently using
transformers where as DC cannot be stepped up or down
efficiently ( the losses in DC-DC buck/boost choppers are
quite high)
* Skin effect is observed in AC transmission systems but not
in DC.
* The need of brushes and commutators makes DC generators
expensive and needs regular maintenance where as AC machines
(generators and motors) are cheap and needs less or no
maintenance.
* Synchronization with system frequency is needed in AC systems.
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
please send the latest sample question paper for the hal online test for electronics stream
What is an asic?
explain how does frequency affect the size of smps?
What is a p-n junction diode? State and explain some of its applications.
What is different between EPABX and PBX
What are schmitt triggers?
What is an idea current source?
What is the difference allen bradley and siemens plc
Tell me why the feeding frequency to a microprocessor is twice the operating frequency?
What electronics are involved to build a device like a guitar tuner where you press a button to get a specific tone?
WHAT R THE DIFFERENT CONFIGURATIONS OF FPGA
What does the pinch off voltage refers to in a mosfet?
The output of the rectifier pulsating in nature, it consists of a desired dc component of voltage and unwanted ripple components. These ripple components are removed by placing filter circuit at the output of the rectifier.
What is the chemical composition of the substance used as feed horn? And how many types of feedor are there?
please send me earlier question papers of rrb je(signal)at my id arvind44444@gmail.com
