What is the relation between current and frequency?
Frequency is the rate at which current changes direction per second. It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle per second. Hertz (Hz) = One hertz is equal to one cycle per second. Cycle = One complete wave of alternating current or voltage.
How do you calculate current from frequency?
Once XL has been found at each frequency, Ohm’s law as stated in the equation I = V/XL can be used to find the current at each frequency.
What is current equation formula?
The current formula is given as I = V/R. The SI unit of current is Ampere (Amp).
What is the frequency of current?
The frequency of a current is how many times one cycle of the waveform is repeated per second, and is measured in hertz (Hz). Mains electricity has a sine waveform (Figure 2b) and a frequency of 50Hz, i.e. it repeats 50 times per second.
How do you calculate frequency and time period?
Frequency is expressed in Hz (Frequency = cycles/seconds). To calculate the time interval of a known frequency, simply divide 1 by the frequency (e.g. a frequency of 100 Hz has a time interval of 1/(100 Hz) = 0.01 seconds; 500 Hz = 1/(500Hz) = 0.002 seconds, etc.)
What is the relation between photoelectric current and frequency?
There is no relationship between frequency and photo electric current. It depends on intensity of light. Frequency changes the speed of electrons.
What is the formula of current amplitude?
The current amplitude is I0=V0Z=0.100V4.87Ω=2.05×10−2A. From Equation 15.4. 5, the phase difference between the current and the emf is ϕ=tan−1XL−XCR=tan−12.77Ω4.00Ω=0.607rad.
What is the formula of frequency in AC circuit?
The frequency of the voltage is symbolized by f and given by f = 1/T. In terms of ω, f = ω/2π, in hertz.
What is frequency of direct current?
Frequency of direct current (DC) is zero because the flow of current is unidirectional here. There is no scope for a reverse in direction and the frequency of direct current (DC) always remains zero.