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3 years ago

5

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) flow

ing in it, and how much resistance (R) will the bulb provide to this flow of current?

1 answer:

dangina [55]3 years ago

7 0

Answer:

I=0.1 R=2500

Explanation:

Resistance

$R=\frac{V^{2} x}{P} \\=\frac{250^{2} }{25} \\=2500$

Current

$I=\frac{250}{2500} \\=0.1$

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2 years ago

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3 years ago

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Ugo [173]

Answer:

$f_{e}$ = 1.9 cm

Explanation:

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M = M₀ $m_{e}$

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Substituting

M = - L/f₀ 25/ $f_{e}$

1) Let's look for the focal length of the eyepiece (faith)

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3 years ago

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Answer:

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Hope it will help

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2 years ago

An object moving 20 m/s

yan [13]

Answer:

<u>We are given:</u>

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<u />

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2 years ago