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Parallel Plate Capacitor Parallel Plate Capacitor :- It consists of two conducting plates of identical shape and equal area, between which an insulating medium (such as air, mica, glass, paper, etc.) is filled. The shape of the plates may be circular, rectangular, square, or any other geometrical form. Of these, one plate is placed…
Capacitance Of A Spherical Conductor Capacitance Of A Spherical Conductor :- When an isolated spherical conductor (solid or hollow) is given a charge, this charge is distributed uniformly over the outer surface of the conductor. The electric potential will be the same at every point on the surface of the spherical conductor. Let’s assume…
Capacitor | Principle Of Capacitor Capacitor | Principle Of Capacitor :- A capacitor is a device used to store a large amount of electric charge and electrical energy in a small space. In general, a capacitor consists of a pair of conductors carrying equal and opposite charges, separated by an insulating (dielectric) medium, which…
Transformer | What Is Transformer | Types Of Transformer Transformer | What Is Transformer | Types Of Transformer :- A transformer is a static electrical device that, through electromagnetic induction, transfers electrical energy at a constant frequency from one AC circuit to one or more other AC circuits, for the purpose of increasing the…
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Wattless Current | What Is Wattless Current Wattless Current | What Is Wattless Current :- The electric current that does not consume electrical power in a circuit is called wattless current or idle current. We know that in an AC circuit, the average power is equal to the product of the RMS voltage (Erms),…
Power Factor | Power Factor Formula | What Is Power Factor Power Factor | Power Factor Formula | What Is Power Factor :- In an alternating circuit, the ratio of real power (average power, Pavg.) to apparent power is called the power factor. We know that in an alternating circuit, the average power, Therefore…
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Average Power In LCR Circuit | Average Power In LCR Circuit Derivation Class 12 Average Power In LCR Circuit :- Suppose the following alternating voltage is applied to a series LCR circuit :- …..(1) If the alternating current lags behind the alternating voltage by a phase angle ϕ, then …..(2)…
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Average Power Dissipated In A Pure Inductor Average Power Dissipated In A Pure Inductor :- The instantaneous power of a purely inductive circuit, Now, over one complete cycle, the value of (sin 2ωt) becomes zero; therefore, over one complete cycle, the average power of the circuit is :- Thus, in one complete cycle, the…
Energy Stored In Inductor Energy Stored In Inductor :- When an inductor is connected to an AC source, it opposes the increase in current due to self-induction. Suppose at some instant the current in the circuit is i, then the induced electromotive force (emf) in the inductor is : Small amount of work done…
Parallel Resonance Circuit Parallel Resonance Circuit :- In a parallel resonant circuit, an inductor and a capacitor are connected in parallel with an alternating voltage source, as shown in the figure below : Assume that the alternating electromotive force (emf) applied by the source is as follows : …..(1) Since in an…