7. Why AC motors, AC bulbs etc... are donot operated by
DC signals? and
Why DC motors, DC bulbs etc... are donot operated by
AC signals?

Answer Posted / subrata

1.due to frequency

Is This Answer Correct ?    19 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is relation between transmission lines & Communication lines ?

1700


what is the purpose of slope in the differential relay?why we are using two slope?but in busbar differential we are using only one slope.why?

2391


How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

1599


What is the two pole structure?

1428


What will be in Mahagenco Trade Test Exam? I want to know the same.

3217






Why LED light has advantage of rapid reflection ,although other lights alse reflect.? and this light is considered to be best for transmission usage in case of Free optics

1594


Dear sir my name Ankit i m Diploma holder present working in Welspun Corp ltd Anjar as Asst.engg (salary 14400/month ctc) i Would like to change my company also i have selected in ford India pvt ltd Sanand as trainee Tech with salary 12000/month so please suggest me for changing my job hope for *ve response

2432


What are the types of piano switches?

1444


What is stepper motor?

730


Y phase plates are used in transmission line??? what is there need???

2438


what is d check in dg 1500kva

1590


how to erect roof control panel?

1540


what is effect of leading power facter on the system and billing

1789


What is dynamo function in DG sets and draw block diagram?

1591


The synchronous machine excitation system explain

1333