why do we prefer alternating current in india where as in
USA prefers DC?

Answer Posted / kj

Most of the world including India and the USA use AC power.
the main reason for this is the ease with which the
voltages can be changed using transformers. The 2
differences are that USA uses power of 120 volts and 60 Hz
but it is still AC.

Is This Answer Correct ?    17 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

fuel-air ratio in a petrol engine fitted with suction carburettor,operating with dirty air filter as compared to clean filter will be

618


I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

1513


What is corkscrew rule?

682


Is potential difference materials property ..? if yes tnen how.. explain brifly.

1543


What is synchro?

663






How can we calculate the efficiency of a Running (On-Load) Motor ? What parameters are required and what is the method ?

1533


Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

1691


a)In a 3-phase 4-wire circuit, a circuit breaker is selected to protect the circuit whose highest fault level is 6.6 MVA. Determine the required minimum breaking capacity in kA. (Note: Covert 3-phase power in terms of kA to find answer.) b)Using the below, determine the required minimum making capacity in kA as a “peak value”. Rate breaking capacity (Icn) ka: Icn<= 1.5 Factor = 1.41 1.5

1186


What is called grain-oriented laminations?

634


model question paper for supervisor trainee

1606


Define end float in a motor?

5478


how to generator maintenance (A Check, B check,Etc)

1779


in 132kv substation CRT means

2210


what is servo motor & how does it work.

1505


What is the name of transformers oil filteration equipment?

1593