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asambeis [7]
3 years ago
11

If the voltage across a circuit of constant resistance is doubled, the power dissipated by that circuit will

Physics
1 answer:
densk [106]3 years ago
6 0

Answer:

The voltage will quadruple

Explanation:

The power dissipated in a circuit is given by

P=\frac{V^2}{R}

where

V is the voltage

R is the resistance

In this problem, the voltage across the circuit is doubled:

V' = 2V

So the new power dissipated is

P'=\frac{V'^2}{R}=\frac{(2V)^2}{R}=4\frac{V^2}{R}=4 P

so, the power dissipated will quadruple.

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Answer:

A. a uniform mixture that can't be separated

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Monochromatic light of wavelength 687 nm is incident on a narrow slit. On a screen 1.65 m away, the distance between the second
Sophie [7]

Answer:

a ) 1.267 radian

b ) 1.084 10⁻³ mm

Explanation:

Distance of screen D = 1.65 m

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Angle of diffraction of second minimum

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d = 2 λ / 1.267 = (2 x 687 ) /1.267 nm

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3 years ago
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Galina-37 [17]

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Explanation:

Given that:

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For r < R

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E*(2 \pi rl)= \dfrac{\rho ( \pi r ^2 l)}{\varepsilon_o}

E= \dfrac{\rho ( r)}{2 \varepsilon_o}

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E= \dfrac{10^{-3} ( r)}{2 (8.85 \times 10^{-12})}

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3 years ago
What is the answer to 895cm a Km
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Answer:

if you're converting then the answer is 0.00895

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icang [17]

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a

Explanation:

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