Answer Posted / sanjeev kumar
A transformer is a device that transfers electrical energy
from one circuit to another through inductively coupled
conductors—the transformer's coils. A varying current in
the first or primary winding creates a varying magnetic
flux in the transformer's core, and thus a varying magnetic
field through the secondary winding. This varying magnetic
field induces a varying electromotive force (EMF)
or "voltage" in the secondary winding. This effect is
called mutual induction.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439
Can we put 3 layers of cable tray while installing tray
Why Stabilising Resistor used in REF circuit ?
what is the difference between active power and reactive power and apparant power in practical as well as theoritical
could anybody able 2 send me jindal steels previous papers fr electrical steam....pls send 2 my id if possible....sirisha.shaik@gmail.com
Leakage current,un balance current which relay using for high voltage transmission?
What is resonant frequency?
trasnfarmaer core make
How many kinds of E.L.C.B and how to work E.L.C.B
AL=0B9H,bl=75H, ADD AL,BL AL=____________? CF________? OF___________?
1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?
How to calculate the size of earth cable to earth the neutral of UPS ?
in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients
what are the reasons of CT circuit faulty in busbar protection scheme?
It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.
