Magnetic Circuit is defined as the path followed by a Magnetic Flux. Magnetic Flux always has a tendency to follow low Reluctance path. The laws of Magnetic Circuit are quite similar to the Electric Circuit but the terms used in Magnetic Circuit analysis is different....

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September 11, 2016 admin
AC Circuit, EM Theory
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The behavior of AC current is different than the behavior of DC current. When DC current flows through a conductor, it get uniformly distributed over the whole cross-section of the conductor but when AC current flows, it has a tendency to flow near the surface...

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September 5, 2016 admin
AC Circuit
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Consider an Inductive circuit and assume the instantaneous voltage be v = VmSinωt Then the current will lag behind the voltage by some angle Ø and the instantaneous current will be as i = ImSin(ωt-Ø) Now to understand the concept of Reactive...

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September 4, 2016 admin
AC Circuit
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All of us know that a Capacitor do not allow DC current to pass through it but allows AC current. In this post we will discuss this kind of behavior of Capacitor.First we will consider DC supply connected to a parallel plate capacitor as shown...

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August 31, 2016 admin
AC Circuit
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This post gives is a quick derivation of the formula for calculating the steady state reactive power absorbed by a capacitor when excited by a sinusoidal voltage source. Given a capacitor with a capacitance value of C in Farads, excited by a voltage source V...

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August 29, 2016 admin
AC Circuit
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As we know that Star & Delta Connection only possible in 3 phase system, so in our domestic system it is not possible, because generally all house hold electrical equipment are designed with single phase supply. Difference between Star & Delta: Star Connected System: Star...

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July 29, 2016 admin
AC Circuit
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Impedance is the resistive parameter offered to the flow of current in a circuit. Whenever current flows or electrons move through a closed circuit, due to collisions of electrons, resistance is offered to the flow of current. In a DC circuit, impedance is nothing but...

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July 16, 2016 admin
AC Circuit
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We don’t really replace the voltage sources with shorts rather we make the voltage of the voltage sources zero volts. An ideal voltage source has zero internal impedance by definition of being “ideal”, so if we reduce its voltage to zero, we are left with...

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July 8, 2016 admin
AC Circuit
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The terms Steady State or Transient State is defined not only for electrical systems, but for many other physical systems also. The transient response does not depend on the source i.e. forcing function, applied. It is purely natural response. Mostly transient response is associated to...

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July 8, 2016 admin
AC Circuit
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As we know that from, Faraday law that a varying current will induce voltage in a coil. When a current passes through a coil it will generate its own magnetic field and this field cuts the same coil producing an emf across it by self...

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July 7, 2016 admin
AC Circuit
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