Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / c.satheeshkumar
1.The EMF predicted by Faraday's law is also responsible
for electrical transformers. When the electric current in a
loop of wire changes, the changing current creates a
changing magnetic field. A second wire in reach of this
magnetic field will experience this change in magnetic
field as a change in its coupled magnetic flux, a d ΦB /d
t. Therefore, an electromotive force is set up in the
second loop called the induced EMF or transformer EMF. If
the two ends of this loop are connected through an
electrical load, current will flow.
2.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 ? | 2 Yes | 1 No |
Post New Answer View All Answers
How to distinguish whether MCB is DC or AC looking at it physically
Explain the different methods used in the choice of rotor slots for reduction of harmonic torques in an induction motor.
how does the thyistor work in dc drive?
What is thresh hold value of current?
what is plunger and what's the use of it in motor alignment?
What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)
Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?
how can maintaince the acb contactor moveing and fixing kit
what is the difference between 2 way and 4 pole selector switch???
what is the difference between skin effect
how to check ac servo motor
How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point
oltc of a transformer, how it works? and what are the equipment consist of describe briefly?
How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)
who can measure the size of power cable?
