Electronics Calculations Data Handbook
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A great source of mathematics engineering pencil Calculations
MMF is most familiar to us as magnetism. The physical force that you feel between magnets is called MMF, or ‘magnetomotive force’. A less familiar manifestation occurs when two wires with electric current passing through them are placed near to each other. A physical force exists between them. (It’s usually too small to feel but the effect is exploited in electric motors.) An MMF is a result of a magnetic field, and the study of magnetic fields is called electromagnetics, which we won’t get involved in here.
If we were to make the wires a given length and separate them by a given distance we could increase the current until we had some given measurable force. Then we would have a unit value of electrical current, the ampere or amp. The amp is abbreviated to A. The symbol which we use for electrical current in equations is I.
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Excerpt from: “Electronics Calculations Data Handbook” by Daniel McBrearty. Scribd.
Inductance – Why is so important in electronics
£ – How do we reduce INDUCTANCE(noise)?
Using a Capacitor
convert 1 microfarad to picofarad
The microfarad (symbolized µF) is a unit of capacitance, equivalent to 0.000001 (10 to the -6th power) farad. The microfarad is a moderate unit of capacitance. In utility alternating-current (AC) and audio-frequency (AF) circuits, capacitors with values on the order of 1 µF or more are common. At radio frequencies (RF), a smaller unit, the picofarad (pF), is often used. This unit is equal to .000000000001 (10^-12) µF.
In RF scenarios, capacitances range from about 1 pF to 1,000 pF in tuned circuits, and from about 0.001 µF to 0.1 µF for blocking and bypassing. At audio frequencies (AF), capacitances range from about 0.1 µF to 100 µF. In power-supply filters, capacitances can be as high as 10,000 µF.
When the voltage across a 1 F capacitor changes at a rate of one volt per second (1 V/s), a current flow of 1 A results.
A capacitance of 1 F produces 1 V of potential difference for an electric charge of one coulomb (1 C). The farad is an extremely large unit of capacitance.
In practice, capacitors with values this large are almost never seen.
Radio Frequency Technology Books
MMF and current
MMF is most familiar to us as magnetism. The physical force that you feel between magnets is called MMF, or ‘magnetomotive force’. A less familiar manifestation occurs when two wires with electric current passing through them are placed near to each other. A physical force exists between them. (It’s usually too small to feel but the effect is exploited in electric motors.) An MMF is a result of a magnetic field, and the study of magnetic fields is called electromagnetics, which we won’t get involved in here.
If we were to make the wires a given length and separate them by a given distance we could increase the current until we had some given measurable force. Then we would have a unit value of electrical current, the ampere or amp. The amp is abbreviated to A. The symbol which we use for electrical current in equations is I.
[…]
Excerpt from: “Electronics Calculations Data Handbook” by Daniel McBrearty. Scribd.
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Basic Electronics Calculations Roundabout
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Wisdom
Art.S | IEEE Collabratec®
IEEE Collabratec® is a research, collaboration and professional networking platform offered to members, researchers, authors and volunteers. IEEE is the world’s largest professional association for the advancement of technology
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Teledyne LeCroy – Test Solutions Design
£Infotech
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Teledyne LeCroy is a leading provider of oscilloscopes, protocol analyzers and related test and measurement solutions that enable companies across a wide range of industries to design and test electronic devices of all types.
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