why we are using the ac supply in domestic purpose why
don't use dc supply
Answer Posted / khushboo
in ac current flows in both cycle means synosoidal.but in
dc direct current flows which is hazadous.dc current is
harmful from safety point of view if it has to be used for
domestic purpose.for example if leakage current flows from
some applicance and if it is caught by human and if it is
dc than one can not not get rid of it as flow of current is
direct but if it is AC than one can get rid of it after
completion of cycle as it is alternate current so it is
less harmfull.
Is This Answer Correct ? | 11 Yes | 2 No |
Post New Answer View All Answers
Do u know any one? how to find out in motor rated amps? formula?
which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter
what is transient enclosure vltage , very fast transients, very fast transient over voltages
Give two basic speed control scheme of dc shunt motor?
RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV
What is star-delta transformer?
sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me
What is the maximum number of swithes that can be connected in series up to down stream point in an LV Distribution system?
CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??
how works inductive &capacitive sensors?
what's producer of XLPE cable laying in undergroung
in star-delta tranformer,if the input of star connection is 400/7v 3 kva then what is the output of delta connection?
Why do we perform an open-circuit test and short-circuit test on the transformer?
In constant power region of 3-phase IM torque-speed characteristics, if frequency increases flux A does not alter B decreases C increases D none of above
how to discharge 3 phase power factor correction capacitors