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Anuta_ua [19.1K]
3 years ago
9

What current in a solenoid 15-cm long wound with 100 turns would produce a magnetic field equal to that of the Earth, 5 cross ti

mes 10 to the power of negative 5 end exponentT ?
Physics
1 answer:
kipiarov [429]3 years ago
6 0

Answer:

The value is  I= 0.0597\  A  

Explanation:

From the question we are told that

    The length of the solenoid is l  =  15 \  cm  =  0.15 \  m

     The number of turns is  N  =  100

      The  magnetic field of the earth is  B  =  5* 10^{-5} \  T

Gnerally magnetic field is mathematically represented as

          B  =  \frac{\mu_o  *  N * I  }{ l }

=>        I= \frac{Bl}{ \mu_o *N  }

=>        I= \frac{ 5 *10^{-5} *  0.15}{4\pi *10^{-7} *100 }  

=>        I= 0.0597\  A  

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