Question

what would be the frequency of an alternating current if its direction changes after every 0.01 second

Answer 1

t=0.01sec

f=1/t

= 1/0.01

=100 Hz

Answer 2

Answer:

The frequency of the alternating current is 50 Hertz

Explanation:

Step 1 : Write down the formula for getting frequency.

f = 1/T

Where :

f = frequency in Hertz.

T = Period in seconds.

Period is the time taken to complete one oscillation.

Step 2: Analyze the question.

Since the direction changes after every 0.01 second, it takes (2 × 0.01) seconds to come back to the same position.

Therefore it takes 0.02 seconds to complete one oscillation.

Step 3 : Calculate the frequency from the formula.

f = 1/T

f = 1/0.02 = 50 Hertz.