The essay intends to exemplify the critique of two websites in terms of the way they each approach capacitance and capacitors. The two sources,are Advanced Physics for You by Keith Johnson, Simmone Hewett,…
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It states that a capacitor is described as a device that is passive in nature and is used for the purpose of storing up energy for use in its own electric field. Any item which can be charged electrically and store energy, can be assumed to be a capacitor. The authors reiterate that the capacitor comprises of two plates, which are usually separate from each other by the use of a dielectric. The two plates are good conductors of electricity and that is why they are separated by an insulator. A capacitor is used in the situation where huge amounts of charge are to be distributed within a short time. The book notes that a capacitor’s charge level depends on the amount of voltage that is applied to the capacitor. If the capacitor is connected to a battery that has high voltage, then more amounts of charge will be supplied to the capacitor’s conductors, as compared to when the capacitor is connected to a battery of a low voltage level. Capacitance is usually a function that does not depend on the difference in potential value between the conductors of the capacitor as well as the charge that is present on the plates. Capacitance can be compared directly to the overlap area created by the two conductor plates of the capacitor. On the other hand, it is inversely comparative to the distance of separation between the plates. Connection of capacitors can be done either in series or parallel in a circuit. The authors say that in some cases, an integration of the two arrangements can be incorporated. The amount of time taken to charge a capacitor relies on the size of the capacitor as well as that of the resistor in the electric circuit. Capacitance is usually measured in units known as the Farad abbreviated as F. one Farad is equivalent to one Coulomb/Volt which is abbreviated as F=C/V. the book states that the stored up energy in the capacitor is usually measured in units known as joules, and it is equivalent to the work that has been
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