Most digital articles/schematics will display frequency as lowercase "f", hand written articles and some CAD software will display frequency with the more accurate lowercase "f" with hook this symbol can be generated in HTML with ƒ or (in windows) by pressing alt+0131
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radio frequency for link to bts to bscs/msc
Frequency drives are an adjustable-speed drive used for electro-mechanical drive systems. They control the motor speed and torque by varying motor input frequency and voltage.
To hear a radio 100 of miles away from the source when the frequency is 1000kc it would require antenna of tremendous size and bulk. So the idea is to transmit a very hi frequency and vary that frequency by 1000kc and then get rid of the carrier frequency and hear the modulation frequency only or 1000kc in this example.
No we can not use it as amplfire .... it is used for switch on and off ... and frequency generator oscelator
The beta cut off frequency is the frequency at which the current amplification of an amplifier transistor drops to three decibels below its value at 1 kilohertz. This is used in electronic engineering.