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Dua muatan listrik q 1 dan q 2 terletak dalam satu garis hubung seperti gambar berkut. Diketahui 1µC=10 -6 C dan k = 9x10 9 Nm 2 /C 2 , maka kuat medan listrik pada titik C adalah...

Dua muatan listrik q1 dan q2 terletak dalam satu garis hubung seperti gambar berkut.

Diketahui 1µC=10-6 C dan k = 9x109 Nm2/C2, maka kuat medan listrik pada titik C adalah...

 

  1. 3 comma 78.10 to the power of 7 space N. C to the power of negative 1 end exponent

  2. 3 comma 62.10 to the power of 7 space N. C to the power of negative 1 end exponent

  3. 2 comma 55.10 to the power of 7 space N. C to the power of negative 1 end exponent

  4. 2 comma 05.10 to the power of 7 space N. C to the power of negative 1 end exponent

  5. 0 comma 52.10 to the power of 7 space N. C to the power of negative 1 end exponent

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Y. Maghfirah

Master Teacher

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straight R subscript straight A space equals space 5 space cm space equals space 5 cross times 10 to the power of negative 2 end exponent space straight m  straight R subscript straight B space equals space 2 space cm space equals space 2 cross times 10 to the power of negative 2 end exponent space straight m

Kuat space medan space listrik space straight A space yang space dirasakan space oleh space straight C space adalah colon

straight E subscript straight A space equals space straight k straight q subscript straight A over straight R subscript straight A squared space equals space open parentheses 9 cross times 10 to the power of 9 close parentheses fraction numerator open parentheses 2 cross times 10 to the power of negative 6 end exponent close parentheses over denominator open parentheses 5 cross times 10 to the power of negative 2 end exponent close parentheses end fraction space equals space 0 comma 72 cross times 10 to the power of 7 space straight N divided by straight C

Kuat space medan space listrik space straight B space yang space dirasakan space oleh space straight C space adalah colon

straight E subscript straight B space equals space straight k straight q subscript straight B over straight R subscript straight B squared space equals space open parentheses 9 cross times 10 to the power of 9 close parentheses fraction numerator open parentheses 2 cross times 10 to the power of negative 6 end exponent close parentheses over denominator open parentheses 2 cross times 10 to the power of negative 2 end exponent close parentheses end fraction space equals space 4 comma 5 cross times 10 to the power of 7 space straight N divided by straight C

Maka comma space kuat space medan space listrik space total space yang space dirasakan space oleh space straight C space adalah colon

straight E subscript straight C space equals space straight E subscript straight B minus straight E subscript straight A  straight E subscript straight C space equals space left parenthesis 4 comma 5 minus 0 comma 72 right parenthesis cross times 10 to the power of 7  straight E subscript straight C space equals space 3 comma 78 cross times 10 to the power of 7 space straight N divided by straight C

 

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Dua buah muatan listrik A = 4 q dan B = q terpisah sejauh 1 dm. Dimana letak titik yang kuat medan listriknya noljika muatan A positif dan B positif?

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