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Ohm's Law in Scalar Form

How much resi...

Question

How much resistance allows 30mA current with 6V battery?

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Solution

By using ohm's law $V = I R$
$\Rightarrow R = \frac{V}{I} = \frac{6}{30 \times 10^{- 3}} = 200 Ω$
Hence the resistance is $200 Ω$

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