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Kuat medan listrik pada titik C sebesar ... begin mathsize 12px style left parenthesis k space equals space 10 to the power of 9 space N m squared C to the power of negative 2 end exponent right parenthesis end style

  1. 5 comma 0 space cross times space 10 to the power of 9 space N C to the power of negative 1 end exponent

  2. 2 comma 3 space cross times space 10 to the power of 10 space N C to the power of negative 1 end exponent

  3. 2 comma 7 space cross times space 10 to the power of 10 space N C to the power of negative 1 end exponent

  4. 3 comma 1 space cross times space 10 to the power of 10 space N C to the power of negative 1 end exponent

  5. 4 comma 0 space cross times space 10 to the power of 10 space N C to the power of negative 1 end exponent

R. Anjasmara

Master Teacher

Mahasiswa/Alumni Universitas Riau

Jawaban terverifikasi

Pembahasan

straight R subscript AC space equals space 2 plus 1 space equals space 3 space straight m  straight R subscript BC space equals space 1 space straight m  straight q subscript straight A space equals space 4 space straight C  straight q subscript straight B space equals space 3 space straight C

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

straight E subscript AC space equals space straight k straight q subscript straight A over straight R squared subscript AC space equals space open parentheses 9 cross times 10 to the power of 9 close parentheses fraction numerator open parentheses 4 close parentheses over denominator open parentheses 3 close parentheses squared end fraction space equals space 4 cross times 10 to the power of 9 space straight N divided by straight C

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

straight E subscript BC space equals space straight k straight q subscript straight B over straight R squared subscript BC space equals space open parentheses 9 cross times 10 to the power of 9 close parentheses fraction numerator open parentheses 3 close parentheses over denominator open parentheses 1 close parentheses squared end fraction space equals space 27 cross times 10 to the power of 9 space straight N divided by straight C

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

straight E subscript straight C space equals space straight E subscript BC space plus space straight E subscript AC  straight E subscript straight C space equals space open parentheses 4 plus 27 close parentheses cross times 10 to the power of 9  straight E subscript straight C space equals space 31 cross times 10 to the power of 9  straight E subscript straight C space equals 3 comma 1 cross times 10 to the power of 10 space straight N divided by straight C

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

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