why do transformer humm ??????????

Answer Posted / meenakshi

bcoz of magnetostriction effect.

Is This Answer Correct ?    5 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

can we synchronize star system generators with delta system transmission line ? and how ?

2321


formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?

1669


The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?

1184


What happens when two positively charged material is placed together?

708


What is the name of the winding to which supply is given?

707






what is meant by surge? what we called for high currents?

1502


What is meant by Im=30mA@Vk/2. How to know the kee point voltage for CT design

2879


what is the importance of earthing system on the generators big capacity and small?

1328


DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER

1631


how much UPS neutral erath leakage current.

3140


Differentiate between voltage and current feedback in amplifiers?

641


how to measure earth resistance of a substation

2751


If ROC does not lies inside unit circle,then ? a) Fourier transform converges b) Z transform converges c) Hatly transform converges d) Colpit Transform converges.

1854


Difference between on line capacitor and Station type capacitor

1570


difference between servo motor and synchronous motor

1886