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There are more than one thing going on here, So note the sequence.
1) When ANY Current is supplied to a transformer, the current in the primary coil produces a magnetic field.
2) If ANY coil of wire "Sees" a changing magnetic field, it will produce current in the wires of that coil.
3) Now comes the magic. If the current in the primary coil is changing all the time, the magnetic field produced by it will always be changing and therefore, the secondary coil will always 'see/sense' a changing magnetic field, it will produce a current in its wires directly caused by that changing magnetic field.
4) Now for the word 'Transformer'. If the number of coils in the secondary coil is more than the number of coils in the primary coil, the voltage produced in the secondary coil will be more than the voltage in the primary. In that way the voltage is 'Transformed' to a different value. Hence the name of this device is 'Transformer'
CommentA changing magnetic field does not 'produce current' in the wires of a coil. It produces voltage, NOT current! Current will only appear when the coil is connected to a load!
What else can I help you with?
How a transformer is very useful in ac supply?
Transformer is the only device which is capable to stepup or stepdown an ac signal. That's why its used widely in ac supply.
What happens when an ac motor is given dc supply?
it burns thats it
What happens if an ac supply is given to dc generator?
AC supplies are not given to DC gennies. A DC gen requires a mechanical prime mover.
Does electrical transformer use a DC or AC source?
A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.
What equipment uses Nlb200050w1a ac adapter?
Transformer Power Supply
What kind of supply is given to the circuit?
ac supply is given and then in the circuit rectifier converts ac to dc
The device that converts AC to DC to run the computer is called?
power supply
What type of voltage must be passed across a transformer?
A transformer must be connected to an alternating current (AC) supply of the correct voltage.
What is the difference between control transformer and Potential transformer?
Control transformer used only for control supply 110,220, 24,12V AC. But Potential transformer used voltage measurement purpose.
How many volts does a mini connector have?
Depends on use,supply,AC,DC .Voltage,transformer ???
Why will or won't a transformer operate on AC?
transformer will work on ac
Does a transformer convert AC to DC?
No, a transformer does not change AC to DC. For this purpose there is a device known as a rectifier, and to transform it back to AC from DC you'll need an inverter. Transformers are only useful with AC due to the alternating waveform which induces a voltage in the secondary winding (when it is connected to a load).
