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.

if three phase supply is given to single phase transformer, what will happen?

3 Answers  

HOW many type of Circut Breaker in the world used in 400 kv substation?

14 Answers   Power Grid,

why we cant control neutral instead of phase in single phase?

3 Answers  

Wy transformer ratings are in multiple of 11 always?

2 Answers  

slipring induction motor starting time Lrs operating why lrs starting time lrs outer body didn't get shock

0 Answers   Ramco,

how to difference between the HT&LT cables

1 Answers   L&T,

what is meant by Hrc fuses.?In the distribution system different rating hrc fuses are used for tranformer(which is 3k,6k,10k,15k etc).what is k?.plz any brother tell me about k?

1 Answers  

What are the types of feedback oscillators?

0 Answers  

what heppend if we are connected u1-v1-w1 as a star point in the place of u2-v2-w2 in power genration

0 Answers  

How you calculating the current for a 2.5 Sqmm cable. A 30 Hp 3 phase AC motor of power what size of cable is used for this motor.

7 Answers   Siemens,

as ac supply is given 2 the transformer why it doesnot depends upon powerfactor????

2 Answers  

Which addressing mode contains the address for data as a part of the instruction in 8085.

3 Answers   Ecil,