Question

the e.m.f. value of an a.c. is E=314 sin 314t write down the value of its frequency.​

Answer 1

Explanation:

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Answer 2

Answer:  The value of frequency is 50 Hertz.

Explanation:

EMF or electro motive force is defined as terminal potential difference when there is no current. It is measured in volt .SI unit of emf is joule per coulomb.

Frequncy is defined as change of flow of electric current . It is measured in Hertz. Frequency of electric source is an important factor in EMF.

Given

$E= 314 sin 314 t$

According to the equation

$E = Eo sin$ω$t$

On comparing both the equations we have -

ω = 314

Now, according to equation

2$\pi$f = ω

2$\pi$f = 314

Multiplying and dividing the equation by 100 on both sides gives

2$\pi$ f = 3.14 × 100

∵ $\pi$ = 3.14

∴ f = 100 ÷ 2

    = 50

Frequency of an ac is 50 hertz

To learn more about emf from the given link

https://brainly.in/question/25848470

To learn more about frequency from the given link

https://brainly.in/question/26452373

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