adspace


what is power factor?

Answer Posted / dhivyabharathi

It is the ratio of resistance to impedance.cos@=R/z.

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

1194


hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .

2010


What current position are you holding in your current company?

2164


hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

2092


How to calculate VCB rating for 33KV ,25 MW Power line?

1852


anyone knows service engineer in chennai for EDM SPARKING MACHINE.CHMER PULSE CD 60 M.pL GIVE ANY CONTACT NOS

2503


how you will decide the distance between the power transformer and its fencing

2051


where can i get vijaya electricals limited in hyderabad interview auestions can u give me the website address plz

2236


How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?

2243


What types of high speed CMOS circuits have you designed?

2226


can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

2235


sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com

1942


sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan

2329


hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

3042


what is mean by restructuring power system?

2160