Question

Below is an oscilloscope trace from an AC supply. Calculate the frequency of the supply if each horizontal division represents 0.05 seconds

Answer 1

Answer:

2.5 Hz

Explanation:

$\boxed{ \boxed{ \bold{frequency = \frac{1}{period} }}}$

Using the formula:

Here after analyzing the graph. There are total 8 divisions to complete 1 wave.

So period: 8 x 0.05 = 0.4 seconds

Frequency : 1/period = 1/0.4 = 2.5 Hz