what happens when we apply dc to a transformer

Answer Posted / n k singh

As we know transformer is a static device and as per
Faradays law of electromagnetic induction the voltage in
the seconary will be induced if flux produced by primary is
changing with time. If primary is fed with DC then there is
no d/dt(of flux),so no emf will be induced in secondary.

Is This Answer Correct ?    33 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Please brief working principle & construction of permanent magnet AC Servo motor

1750


exolain the star delta connection

2191


how to calculate cooling requirement of datacentre from electrical load?

1868


What is a system?

700


WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?

3529






What is Instantaneous Earth fault relay,how will work

1690


Mention the difference between Analogue and Digital circuit?

686


If increased the frequency up to 1000 then what changes shows in voltage?

1985


What is the selection process of breakers. Can any one please give a formulation on same?

1689


What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?

1741


Explain Energy and Power signals?

1286


what is relay what is protection & contact multiplying relays where it is used function in brief

687


how to calculate cable size in diffrent loads?

1640


1.WHAT IS A SMART CAPABLE DB ( DISTRIBUTION BOX) ? 2. HOW TO DECIDE THE TYPE OF DB TO BE USED ( RECESSED/ PLUG TYPE/ SMART ETC ETC? 3. WHAT IS MILLENEUM BUS BAR USED IN DB? 4.DIFFERENTIATE MCCB AND MCB.

1406


what is x'mer ,isolation x'mer & yltra-isolation x'mer?????

1846