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.

What is meant by control system?

0 Answers  

what is called star connection and delta connection also purpose of this connections?

3 Answers   Siemens,

Explain what is use of lockout relay in ht voltage?

0 Answers  

What is the formula to calculate the rating of a three phase trnasformer

1 Answers  

What is the maximum load of 240mmsequre single core cable can carry?

1 Answers  

why ohmas low not sutable to transformer.

1 Answers  

1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?

0 Answers   TATA,

what is meant by fuzzy logic? what is fuzzification and defuzzification?

5 Answers   MEIL, Power Grid,

Corona occurs between two transmission wires when they (a) are closely-spaced (b) are widely-spaced (c) have high potential difference (d) carry d.c. power

2 Answers   Power Grid,

PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

0 Answers   ABB,

Is there any local or International standards that prohibit the installation of earthing pit in the planters area where the earthing pit is subject to continues soak in water?

1 Answers  

is there any current flows in our body?

4 Answers