Wednesday, October 31, 2012

Capacitors (Part 2)

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Capacitors are the second most commonly used component in electronics. They can be thought of as tiny rechargeable batteries—capacitors can be charged and discharged. The amount of charge that a capacitor can hold is measured in Far- ads or the letter F. However, 1F is too large for capacitors, so microfarads (μF) and picofarads (pF) are used: micro = 1/1,000,000 and pico = 1/1,000,000,000,000 So,...
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Device Electrical Characteristics

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The resistor is a linear device and is characterized by a “straight-line equation”. It dissipates power as heat, its value in ohms can vary as to the tolerance rating (ohms ± % of rated value). The resistor cannot store energy. An inductor or capacitor is an energy storage device; a capacitor’s current or an inductor’s voltage does not change instantaneously. Initial conditions can apply to both...
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