What is the formula for frequency as in ac current?

Answer 1

The formula for frequency is: frequency = 1 / T, where T = Period. That is e.g. "cycles per second".

The formula for time is: T (Period) = 1 / frequency.

Note: T = Period and t = Time

Answer 2

f = 1/T

e.g. What frequency has a period of 2 ms? (2 milliseconds)

f = 1/0.002 = 500 Hz.

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T = 1/f

e.g. Find the period of T = 250 Hz

T = 1/250 = 0.004 ms.

Answer 3

For a wavelengt lambda in air with the speed of sound of c = 340 meters per second the frequency f = c / lambda or lambda = c / f.

There is a useful calculator for converting wavelength to frequency and vice versa.

Scroll down to related links and look at "Acoustic waves or sound waves in air".

Answer 4

The formula that links frequency to wavelength is v = f * lambda, where v is speed with units of meters per second (m/s), f is frequency with units of hertz (Hz or 1/s), and lambda is the wavelength with units of meters (m). Given frequency and speed, one can easily find the wavelength by solving the given equation to get lambda = v / f. Conversely, if given wavelength and speed, one can easily find the frequency by solving the given equation to get f = v / lambda.

Answer 5

Frequency means how often sometimes happens. The unit hertz is equivalent to 1/second. For example, if something repeats 60 times per second (the typical frequency of electrical current in some areas), it has a frequency of 60 hertz.

Answer 6

The formula of frequency is: f=1/T

where:

- T is period, in seconds

- f is frequency, in hertz

Answer 7

Alternating current usually has a frequency of 60 cycles per second. This is not determined by a formula, it is determined by the rotations per second of the turbine which generates the current.

Answer 8

frequency is number of in one second

Answer 9

Frequency. = 1/ Period (T)