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Perhatikan gambar kawat yang dialiri listrik berikut! Besar induksi magnetik di titik P adalah ....

Perhatikan gambar kawat yang dialiri listrik berikut!

Besar induksi magnetik di titik P adalah .... begin mathsize 12px style left parenthesis straight mu subscript 0 equals 4 straight pi cross times 10 to the power of negative 7 end exponent space Wb. straight m to the power of negative 1 end exponent. straight A to the power of negative 1 end exponent right parenthesis end style

  1. 0 comma 5 straight pi space cross times space 10 to the power of negative 5 end exponent space straight T

  2. 1 comma 0 straight pi space cross times space 10 to the power of negative 5 end exponent space straight T

  3. 1 comma 5 straight pi space cross times space 10 to the power of negative 5 end exponent space straight T

  4. 2 comma 0 straight pi space cross times space 10 to the power of negative 5 end exponent space straight T

  5. 3 comma 0 straight pi space cross times space 10 to the power of negative 5 end exponent space straight T

Jawaban:

straight I space equals space 2 space straight A  straight a equals 3 space cm equals 0 comma 03 space straight m

Maka besarnya induksi magnetik di titik P adalah :

straight B space equals space fraction numerator left parenthesis 360 minus 90 right parenthesis degree over denominator left parenthesis 360 degree right parenthesis end fraction cross times fraction numerator straight mu subscript 0 straight I over denominator 2 straight a end fraction  straight B space equals 3 over 4 cross times fraction numerator open parentheses 4 straight pi cross times 10 to the power of negative 7 end exponent close parentheses open parentheses 2 close parentheses over denominator left parenthesis 2 right parenthesis left parenthesis 3 cross times 10 to the power of negative 2 end exponent right parenthesis end fraction  straight B space equals space straight pi cross times 10 to the power of negative 5 end exponent space straight T

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