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\frac{1}{4 {πε}_{0}}

এর মান কত ?

9.0 \times 10^{9} N m^{- 2} C^{2}

9.0 \times 10^{9} N m C^{- 2}

9.0 \times 10^{9} N m^{2} C^{- 2}

8.5 \times 10^{- 12} N m^{2} C^{- 2}

8.5 \times 10^{12} N m C^{- 1}

ANS : 3

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