Answer Posted / mihir sarkar
Transformer is a static device which only step-up and step-
down the AC voltage keeping power constant.An amplifier can
step-up DC power.
| Is This Answer Correct ? | 19 Yes | 2 No |
Post New Answer View All Answers
What is the power factor of an alternator at no load?
PLEASE SEND THE PREVIOUS YEARS QUESTION PAPERS OF RRB JUNIOR ENGINEER-ELECTRICAL
what is dry and wet frequency withstand voltage? why & where it is used??
why they were using TRIAC instead relay in some controllers and what is the advantages.
What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?
why we have and use 3 phase not 2 or 4 or other in power system?
I PURCHASED A DEISEL GENARATOR SET OF AVR TYPE& RATING 125KVA BUT SOME TIMES THE OUTPUT VOLTAGE IS FLUCTUATING WHAT ARE THE PROBABLE REASONS GIVE ME
What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu?
what is the AC Plant and how can do the work with parts and picture tell us 150 Tr
give single line diagram of D.G distribution form alternator to main L.T panel?
What are the causes of unbalanced current on 34.5kv feeder Ia=0.05,Ib= 0.25, Ic=0.15 and In=0.27 prior to tripping current are balance?
What was the Dg set radiator and lube oil temperatures trip in ACB
What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker
how to select the isolation tranformer for siemens 802dsl cnotroller
DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS