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  • In an ideal transformer, the voltage and the current in the primary are 200 volt and 2 amp respectively. If the voltage in the secondary is 2000 volt. Then value of current in the secondary will be

In an ideal transformer, the voltage and the current in the primary are 200 volt and 2 amp respectively. If the voltage in the secondary is 2000 volt. Then value of current in the secondary will be :       

Option: 1

 0.2 amp


Option: 2

2 amp              

 


Option: 3

10 amp


Option: 4

20 amp


Answers (1)

best_answer

 

Ideal transformer -

There is no loss of power.

- wherein

P_{out}= P_{in}

V_{s}\, {i}'_{s}= V_{in}i_{in}

 

 

Given :

    Voltage in primary V_{P} =200\; volt

    Current in primary i_{P}=2\; amp

   Voltage in secondaryV_{S}=2000 \; volt

    The relation for the current in the secondary is

\frac{v_{s}}{v_{p}}=\frac{i_{p}}{i_{s}}

 or  = 0.2 amp.

\frac{2000}{200}=\frac{2}{i_{s}}   or   i_s=\frac{2\times 200}{2000}=0.2A

Posted by

Gaurav

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