Capacitance Calculators
What exactly is Capacitance?
Capacitance refers to the ability that an object has to store electric charge on its own. The capacitance of an object would vary only based on the geometric shape of the capacitor as well as the nature of dielectric material that is added in between the two plates. It doesn’t usually vary based on the charge stored or potential difference of the plates.
Capacitance (charge) EquationThe equation to calculate capacitance is quite simple and straightforward. Below mentioned is the capacitance equation:
Where:
q = Charge V = Voltage C = Capacitance |
The Capacitance Equation can also be rearranged to calculate Voltage and Resistance:
Equation to Find Capacitance
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Capacitance is a property linked with the capacitor. Capacitors are quite popular as electrical components, which are designed to hold charge. According to the capacitance equation as shown above, it is clear that having a high capacitance value determines the ability to hold a higher charge.
Capacitors are one of the most prominent and basic electrical circuit components out there. They are often being used similar to inductors and resistors. You will be able to use a capacitor to store energy on a storage device. On the other hand, you will be able to use it as a prominent component in oscillators and filters as well.
Capacitors are one of the most prominent and basic electrical circuit components out there. They are often being used similar to inductors and resistors. You will be able to use a capacitor to store energy on a storage device. On the other hand, you will be able to use it as a prominent component in oscillators and filters as well.
What else should you know about capacitance?
It is not just the capacitors that indicate capacitance. You will be able to find many other materials, which are capable of indicating capacitance. However, capacitors are quite useful in electric circuits. That’s because they are being used to hold a small charge, which enables proper functionality of numerous electronic appliances.
Capacitance Between Plates
Are you designing a parallel plate capacitor? A parallel plate capacitor is made out of two different parallelly placed conductive plates. These two plates are separated by a dielectric gap.
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It is possible to calculate the capacitance of a material by using the intrinsic properties that it has. For example, you may think about using the following formula to determine the capacitance of a parallel plate capacitor.
Where:
Eo = Electric Constant of gap (1 for Air Gap) Er = Relative Permeability A = cross-sectional area of the plates. d r= the distance that exist in between the two parallel plates. When the distance increases, capacitance will drop. Capacitance will increase if bigger plates are being used. |
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When you take a look at the energy stored within a capacitor, you will figure out that it is a function of voltage as well as capacitance across it. This is the main reason on why bigger capacitors that come along with a larger capacitor value are capable of holding more energy when compared to smaller capacitors.