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Power in an AC circuit: definition, and formula derivation
In this article, we will discuss the Power of an AC circuit: definition, and formula derivation, so let’s get started… Power in an AC circuit Power in an AC circuit definition: The rate at which electric energy is consumed in an electric circuit is called its power. In a DC circuit, power is given by the product of voltage and current. But in an AC circuit, both voltage $\varepsilon$ and current $I$ vary sinusoidally with time and are generally not in phase: So for an AC circuit, we define instantaneous power as the product of the instantaneous voltage and instantaneous current.
Choke coil – principle, working, and construction, class 12
In this article, we will discuss the Choke coil – principle, working, and construction, so let’s get started… What is a Choke coil? A choke coil is simply an inductor with large inductance that is used to reduce the current in a.c. circuits without much loss of energy. Principle of a choke coil The working of a choke is based on the fact that when a.c. flows through an inductor, current lags behind the emf by a phase angle of $\pi / 2 \mathrm \;{rad}$. Construction of a choke coil It is made of thick insulated copper wire wound closely
Sharpness of Resonance: Q-Factor in LCR circuit, class 12
In this article, we will discuss the sharpness of resonance: Q-factor in LCR circuits. So let’s get started… What is resonance? We can understand the sharpness of a resonance better by understanding the term resonance. Resonance describes the phenomenon of increasing amplitude that occurs when the frequency of an applied periodic force is at or near the natural frequency of the system on which it acts. The frequency at which resonance occurs is called resonant frequency. At the resonant frequency, the amplitude of the system is relatively maximum. The Q factor is used to define the sharpness of the resonance.
Resonance condition in a series LCR circuit
In this article, we will discuss the resonance condition in a series LCR circuit, so let’s get started… What is resonance? A simple explanation Before moving on to the topic of resonance conditions in series LCR circuits. It is necessary for us that we understood the term “resonance“. So what is resonance? Let’s take the example of swing to understand the phenomenon of resonance. Whenever a person is swinging on a swing, then he is swinging with a system’s frequency called natural frequency. Actually, everything in this universe is vibrating (oscillating) with its base frequency without any driving force, this
AC voltage applied to a series LCR circuit
In this article, we will discuss an AC circuit that contains a resistor, inductor, and capacitor in series, so let’s get started… What is LCR Circuit? An $LCR$ electronic circuit contains an $R$-ohm resistor, a $C$-farad capacitor, and an L-Henry inductor, all connected in series. Since the three elements of the $LCR$ circuit are connected in series, the current through them all is the same and equals the total current $I$ through the circuit. A circuit that contains $L$, $R$, and $C$ components at certain frequencies can cause $L$ and $C$ (or some of their electrical effects) to vanish entirely.
Direct Speech and Indirect Speech in English Grammar- Definition, Types, and examples
What is Direct Speech? When the speaker’s exact words need to be conveyed, Direct Speech is used. It is also used for quotes. Whenever Direct Speech is used the words that need to be conveyed are written in between quotation marks (” “). Examples: Read Also What is Indirect Speech? In Indirect Speech, the exact words of the speaker are not conveyed. Instead, only the meaning of the conversation or speech is conveyed. Unlike Direct Speech quotation marks are not used in Indirect Speech. Examples: There are a few factors to be considered while converting direct speech to indirect speech.
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An equation for me has no meaning unless, it express the thoughts of God