Question

If an ac main supply is given to be 220V what will be average emf during positive half cycle

Answer 1

Answer:

198 V

Step by step explanation:

It is given that the AC Voltage = 200V.

It is required to calculate the average e.m.f during the positive half cycle.

Therefore, $V_{rms}=220\sqrt{2}$V

Average value of emf = $\frac{2V_{rms}}{\pi}$

$V_{avg}=\frac{2*200\sqrt{2} }{\pi}=198\:V$

Answer 2

Answer:

The average emf during positive half cycle is 220 V

Explanation:

It is given that,

Supplied voltage is, $E_{rms}=220\ V$

The average emf during positive half cycle is given by :

$E_{avg}=\dfrac{2E_0}{\pi}$

Where

E₀ is the peak value of emf

And $E_0=E_{rms}\sqrt{2}$

So, $E_{avg}=\dfrac{2\dsqrt{2}\times 220\ V}{3.14}$

$E_{rms}=198\ V$

Hence, this is the required solution.