A bulb is rated as 25Watt -250 Volt. On connecting this bulb to a mains of 250 volts, what will be the value of current (I) flowing in it, a

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A bulb is rated as 25Watt -250 Volt. On connecting this bulb to a mains of 250 volts, what will be the value of current (I) flowing in it, and how much resistance (R) will the bulb provide to this flow of current?

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  1. Answer:

    I=0.1          R=2500

    Explanation:

    Resistance

    [tex]R=\frac{V^{2} x}{P} \\=\frac{250^{2} }{25} \\=2500[/tex]

    Current

    [tex]I=\frac{250}{2500} \\=0.1[/tex]

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