What is the current flowing through an appliance marked $240 V, 40 W$ ?

0.17 A

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3.00 A

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6.67 A

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6.00 A

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Solution

The correct option is A $0.17 A$
Potential difference across the appliance $V = 240$ volts
Power of the appliance $P = 40 W$
Thus current flowing through the appliance $I = \frac{P}{V}$
$⟹$ $I = \frac{40}{240} = 0.17 A$

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