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একটি পদার্থের আপেক্ষিক রোধ $1.8 \times 10^{- 8} Ω m$ । 3mm ব্যাসের কত দৈর্ঘ্যের ভারের রোধ $12 Ω$ হবে?

Created: 1 year ago | Updated: 1 year ago

Updated: 1 year ago

2.12 \times 10^{- 4} m

4.71 \times 10^{3} m

1.88 \times 10^{4} m

1.88 \times 10^{10} m

Explanation

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\vec{A} . \vec{B}

\vec{C}

20 Ω

1.6 \times 10^{- 19} C

9.11 \times 10^{- 31} k g

S = \frac{1}{3} t^{3} + 3 t

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