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Group Velocity Group Velocity :- When a single sinusoidal wave travels, it has one frequency and one wavelength, and it stretches infinitely in space. But real waves (like light pulses, water wave bursts, or matter waves) usually travel as wave packets, formed by the superposition of many waves of slightly different frequencies. Such a…
Equivalent Capacitance Of Complex Circuits Equivalent Capacitance Of Complex Circuits :- In electrical circuits, when we use capacitors, they are often connected to each other in various combinations. When these combinations contain two or more capacitors and it becomes difficult to represent them in a simple form, such circuits are called complex circuits. For…
Capacitor Partially Filled With Dielectric Capacitor Partially Filled With Dielectric :- Consider a parallel plate capacitor with plate area A and distance d between the plates. A dielectric slab of thickness t (t < d) and dielectric constant K is placed between the plates of the parallel plate capacitor as shown in the figure. Let’s…
Loss Of Energy In Redistribution Of Charges | Redistribution Of Charges Loss Of Energy In Redistribution Of Charges | Redistribution Of Charges :- When capacitors charged to different potentials are connected with each other, charge flows from the capacitor at higher potential to the one at lower potential. In this process, although the total…
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Common Potential | Common Potential Formula | Common Potential Of Capacitor Common Potential | Common Potential Formula | Common Potential Of Capacitor :- When two capacitors that have been charged to different electric potentials are connected by a conducting wire, electric charge flows from the capacitor at higher potential to the capacitor at lower…
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Combination Of Capacitors Combination Of Capacitors :- When a capacitor of the desired capacitance is not available, two or more capacitors are connected together to obtain the required capacitance. The combination of capacitors is done in two ways :- Series combination and Parallel combination (1). Series Combination Of Capacitors In a series combination…
Energy Stored In A Capacitor | Energy Stored In A Capacitor Formula Energy Stored In A Capacitor | Energy Stored In A Capacitor Formula :- Suppose a capacitor has capacitance C and is connected to a battery, by which it is charged from zero potential to a potential V. To determine the total energy…
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Cylindrical Capacitor | Capacitance Of Cylindrical Capacitor Cylindrical Capacitor | Capacitance Of Cylindrical Capacitor :- A cylindrical capacitor is a type of capacitor in which two coaxial cylindrical conductors are present, and the space between them is filled with a dielectric material (air or any other insulating material). Structure of a Cylindrical Capacitor :…
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Spherical Capacitor | Capacitance Of Spherical Capacitor Spherical Capacitor | Capacitance Of Spherical Capacitor :- In a spherical capacitor, there are two spherical conductors which are either concentric, or placed at a very large distance from each other. Therefore, we can divide a spherical capacitor into two parts as follows :- (a). A spherical…
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Effect Of Dielectric On Capacitance Effect Of Dielectric On Capacitance :- Suppose the charge densities on the plates of a capacitor are +σ and −σ respectively, and the distance between the plates is d. The entire space between the plates is filled with a dielectric material having dielectric constant εr . The dielectric material…