Question

a transformer of 200 turns in a primary coil when connected with 100 volt a.c. sources induces 200 volt in secondary coil . Calculate the number of turns in the secondary coil

Answer 1

Answer:

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Answer 2

Answer:

A transformer of 200 turns in a primary coil when connected with 100v a.c. sources induce 200v in the secondary coil, the number of turns in the secondary coil is 400v

​Explanation:

• In a transformer, there is a primary coil with a number of turns $N_{1}$ voltage, and current through it is $I_{1}$. In the secondary coil, the number of turns is $N_{2}$ voltage is $V_{2}$ and current is $I_{2}$

• The relation connecting these parameters is given by the formula

        $\frac{N_{1} }{N_{2} } =\frac{V_{1} }{V_{2} }=\frac{I_{2} }{I_{1} }$

From the question, we have

the number of turns in the primary coil $N_{1} =200$

the voltage in the primary coil is $V_{1} =100v$

the voltage in the secondary coil is $V_{2} =200v$

the number of turns in the secondary coil $N_{2} =\frac{V_{2} N_{1} }{V_{1} }$

⇒$V_{1} =\frac{200*200}{100}=400v$