Answer / naeem

Amplifier is active, while Transformer is a passive device. Amplifier's input and output impedances r independent of gain, a Transformers input and output impedances r related by the square of turn ratio.

Answer / sarmadahmed

The difference between transformer and amplifier is that transformer is passive means it doesn't produce any power, it just transfer power from one side to another while amplifier is active as it amplifies the power.

Answer / joni sharma

i think the main difference between amplifier & transformer is that a transformer transforms only voltage & current not also frequency on the other side a amplifier transforms or amplifies the frequency of sinusoidal quantity.

Answer / naveen

transformer simply transfers
the energy from one circuit
to another circuit but
amplifier not only transfers
the energy but also amplifies
the energy....
i think its the difference
between the transformer and
amplifier

Answer / puneet purohit

Ans r nice but what if we r take an example of step up transformer.in that case the voltage is increase.

why dc motor is called constant flux motor?

1 Answers  

What is the difference between a Distribution Transformer and a Power Transformer.

4 Answers  

what happens if DC earthing and AC earthings are shorted?

1 Answers  

can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??

0 Answers   MCB,

WHAT ARE THE BELT HORMONICS IN AC MACHINE HOW TO REDUCE IT

2 Answers   DRDO,

which pump is suitable for home use ?

3 Answers  

could you measure current in parallel?

0 Answers  

How can we calculate the capacitance of generator?

1 Answers  

give me a clear defination of inductance,and how can u calculate inductance of a motor

0 Answers  

how the length effects the ampacity of the cable? if a cable is carrying a current of 100A for 50m length then what will the effect on current if we double the length?

2 Answers  

how we could know that generator running anti clockwise with seeing the rotating direction of prime mover or engine

1 Answers  

What are the special protection given for high capacity Motor, more then 10mw

2 Answers