Question

calculate the resistance of an electric bulb which allows a 10a current when connected to 220v power source for class 10 answer

Answer 1

since V=IR according to ohms law
R=220÷10 =20 ohm

Answer 2

$Given\: - \:\: \\ => Current(A) \: = 10A \\ => Potential \: Difference \: = \: 220V$
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$To \: find \: - \: Resistance(Ohm) \: =\:?$
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$\\Solution \: - \: We \: know \: that \\ \\ V = IR \:\:\:\:(Ohms \: law) \\\\ R = \frac{V}{I} \: \: (after \: rearrnging \: it) \\\\ => R = \frac{220}{10}$$\bf \\ => R = 22 \: Ohms$
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• Hence, the Bulb has a $\bf\textit{\underline{Resistance}}$ of 10 Ohms.