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Anuta_ua [19.1K]
4 years ago
12

What is the function of a transformer?Why is this done?

Physics
1 answer:
ollegr [7]4 years ago
8 0

Answer:

A transformer is an electrical device for changing the size of an AC voltage

Explanation:

A transformer is an electrical device for changing the size of an alternating current voltage.it acts to increase or decrease the electromotive force of an alternating current

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Which of the following best describes each particle?
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An electron is confined in a harmonic oscillator potential well. What is the longest wavelength of light that the electron can a
kipiarov [429]

Answer:

The longest wavelength of light is 209 nm.

Explanation:

Given that,

Spring constant = 74 N/m

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Speed of light c= 3\times10^{8}\ m/s

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Using formula of frequency

f =\dfrac{1}{2\pi}\sqrt{\dfrac{k}{m}}

Where, k= spring constant

m = mass of the particle

Put the value into the formula

f=\dfrac{1}{2\pi}\sqrt{\dfrac{74}{9.11\times10^{-31}}}

f=1.434\times10^{15}\ Hz

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\lambda=\dfrac{c}{f}

Where, c = speed of light

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Put the value into the formula

\lambda =\dfrac{3\times10^{8}}{1.434\times10^{15}}

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Hence, The longest wavelength of light is 209 nm.

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