What's the difference between hertz and frequency?

Hertz is the unit noun of frequency, for example, the frequency of 220V power supply is 50-60 Hz.

The frequency of sound that people's ears can hear is 20-20000 Hz.

The bass frequency is 20-200 Hz and the midrange frequency is 300-3000 Hz. The treble is the frequency of 3000-20000HZ (the effective frequency range of the sound box), which is the number of periodic changes in unit time and a quantity describing the frequency of periodic motion. It is usually represented by the symbol F or V, with the unit of one second and the symbol s- 1. In order to commemorate the contribution of German physicist Hertz, people named the unit of frequency Hertz, abbreviated as "Hertz", and the symbol is Hz frequency, which is the number of times to complete periodic changes in unit time and the quantity to describe the frequency of periodic motion. It is usually represented by the symbol F or V, with the unit of one second and the symbol s- 1.

In order to commemorate the contribution of German physicist Hertz, people named the unit of frequency Hertz, abbreviated as "Hertz", and the symbol was Hertz. What is the unit of hertz? Unit conversion of frequency hertz

Hertz is the unit of frequency. In the power grid, frequency refers to the number of times the alternating current signal changes in one second. The number of times food vibrates per unit time. Hertz is the unit of frequency. The frequency of China power grid is 50HZ, which means that the power supply voltage changes for 50 cycles within 1 sec.

Hertz is the unit of frequency. The electricity in the power grid is sinusoidal alternating current, and there are two ways to express the changing speed of alternating current. (1) frequency refers to the number of changes of alternating current per unit time (per second), which is expressed by the symbol f, with the unit of Hz and the symbol of Hz. The frequency of alternating current in the power grid is 50Hz (50 Hz). In addition, there are kilohertz (kHz), megahertz (MHz), gigahertz (GHz) and so on. (2) The period refers to the time required for alternating current to change once a week, which is expressed by the symbol T, with the unit of seconds and the symbol (S). Commonly uSed units are milliseconds (mS), microseconds (us), nanoseconds (nS) and so on. The period of alternating current in the power grid is 20mS (20ms).

The relationship between frequency f and period t is: T= 1/f or f =1/t.

Note: Unit conversion

Frequency: 1GHz= 1000MHz, 1MHz= 1000kHz, 1kHz= 1000Hz.

Time (period): 1S= 1000mS, 1ms = 1000ms,1us =1000 ms.