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.

In case of power/distribution transformer what is percent impedence?

1 Answers  

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in a three pin socket y the pin of earthng is longer n bigger...?

3 Answers  

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Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.

0 Answers  

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What is working Priniciple of TVSS ????

1 Answers   Emerson,

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WANTCONTACT NUMBER & EMAIL/ WEBSITE TO CONTACT THE SECRETARY,MADHYA PRADESH LICENSING BOARD(ELECTRICAL),K- BLOCK,3RD FLOOR,SATPOODA BHAWAN,BHOPAL

0 Answers  

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what is the use of excitation transformer in LAVT PANEL?

2 Answers  

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assume we are put both df/dt and vector surge relay in same bus the df/dt relay setting is +5 hz an -5HZ. we want operat the vector surge relay before the df/dt how i calculate the setting of the vector surge relay.

1 Answers  

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Dear friends, i would like to know that what is the exact function of 'exciter winding' & 'aux winding' in Alternator?

0 Answers   NTPC,

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IS there any mechanical connection between the field winding and armature winding of a dc generator?

11 Answers   IOCL,

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hi, i have 3x200KVA and 2 x 80KVA UPS with battery bank of 150AH 68Nos. and 100AH 204Nos., i need to install AC either ductable or PAC type, so can you help me to calculate heat load and capacity of the AC to install.

0 Answers   Hyundai,

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types of motor starter

5 Answers  

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What is vcb?

3 Answers  

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