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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…
Quality Factor | Quality Factor Formula | What Is Quality Factor Quality Factor | Quality Factor Formula | What Is Quality Factor :- The ratio of the resonant frequency (ωr) to the bandwidth (β) of a circuit is called the Quality Factor (Q). …..(1) We know that at the half-power points P1…
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Series Resonance Circuit | Series Resonance Series Resonance Circuit | Series Resonance :- A circuit in which an inductor (L), a capacitor (C), and a resistor (R) are connected in series, and at a specific frequency (the resonant frequency) the impedance of the circuit becomes minimum (Zmin) and the current becomes maximum (Imax), is…
Resonance Circuit | What Is Resonance Circuit Resonance Circuit | What Is Resonance Circuit :- When the natural frequency of a circuit becomes equal to the frequency of the applied voltage, such a circuit is called a resonant circuit. For resonance, both an inductor (L) and a capacitor (C) must be present in the…