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Pulse-repetition frequency (PRF) is the number of times a pulsed activity occurs every second. This is similar to cycle per second used to describe other types of waveforms. PRF is inversely proportional to time period which is the property of a pulsed wave. PRF is usually associated with pulse spacing, which is the distance that the pulse ...
v. t. e. A series RLC network (in order): a resistor, an inductor, and a capacitor. Tuned circuit of a shortwave radio transmitter. This circuit does not have a resistor like the above, but all tuned circuits have some resistance, causing them to function as an RLC circuit. An RLC circuit is an electrical circuit consisting of a resistor (R ...
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. [1] [a] The hertz is an SI derived unit whose expression in terms of SI base units is s −1, meaning that one hertz is the reciprocal of one second. [2] It is named after Heinrich Rudolf Hertz (1857–1894 ...
Heinrich Rudolf Hertz ( / hɜːrts / HURTS; German: [ˈhaɪnʁɪç ˈhɛʁts]; [1] [2] 22 February 1857 – 1 January 1894) was a German physicist who first conclusively proved the existence of the electromagnetic waves predicted by James Clerk Maxwell 's equations of electromagnetism. The unit of frequency, cycle per second, was named the ...
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Hertz Global Holdings, originally known as Rent-a-Car Inc., was founded by Chicago, Illinois native Walter L. Jacobs in 1918. [9] This small car rental operation began with a dozen Model T Ford cars. [10] [11] Within five years, Jacobs' fleet expanded to 600 vehicles—generating annual revenues of approximately US$1 million. [11]
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