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irakobra [83]
3 years ago
5

When the current in a toroidal solenoid is changing at a rate of 0.0200 A/s, the magnitude of the induced emf is 12.7 mV. When t

he current equals 1.50 A, the average flux through each turn of the solenoid is 0.00458 Wb. How many turns does the solenoid have?
Physics
1 answer:
Thepotemich [5.8K]3 years ago
3 0

Answer:

N  =  208 \  turns

Explanation:

From the question we are told that

    The  rate of  current change is  \frac{di }{dt}  =  0.0200 \ A/s

    The  magnitude of the induced emf is  \epsilon =  12.7 \ mV =  12.7 *10^{-3} \ V

     The  current is  I  =  1.50 \  A

      The  average  flux is  \phi =  0.00458 \ Wb

Generally the number of  turns the number of turn the solenoid has is mathematically represented as  

            N  =  \frac{\epsilon_o  *  I}{ \phi *  \frac{di}{dt} }

substituting values

           N  =  \frac{ 12.7*10^{-3}  *   1.50 }{ 0.00458 *   0.0200 }

            N  =  208 \  turns

       

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