Question

an AC current varies through one complete cycle 1 per 100 sec .
​

Answer 1

Answer:

$\huge \bf \pink{a} \red{n} \purple{s} \blue{w} \green{e} \orange{r}$

F = 50,

[math]T = 1/F,[/math]

[math]T = 1/50,[/math]

[math]T = 0.02 second[/math]

It means, in 0.02 second one cycle is complete.

In one cycle 2 time AC change its polarity.

So, [math]1/0.02 = 50[/math]

And [math]50*2 = 100[/math]

So 50 Hz AC change its polarity is 100 time.

In other word 50Hz means in a one second 50 cycle is complete.

And in AC 1 cycle 2 time polarity change

Total [math]50*2 = 100 [/math]

So, 50Hz AC change its polarity in 1 second is 100 time.