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Faraday's Law of electromagnetic induction | Lenz's law | Law of electromagnetic induction

Faradays Law of  Electromagnetic Induction : Faraday's laws state that an emf is induced in a circuit which is (i) Directly proportional to the time rate of change of flux enclosed by the circuit. (ii) Directly proportional to N the no. of turns of the circuit. Combining, the two laws, Faraday's laws of induction can be expressed mathematically as Here negative sign is due to Emil Lenz, who after Faraday's experiments suggested that the direction of the induced current is always such as to oppose the action that produced it. As we know Faraday's law as given by equation (ii.1) is one of the two basic relationships upon which the whole theory of electromagnetic and electromechanical energy conversion devices are based and today we have the generator and motor (electric) operating based on this theory. Also, Faraday was the first to identify emf of self-induction, i.e., here we have only one coil and it is connected to a de source through a switch. When current is flowin...
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Emf Induced in a Rotating Coil placed in a Magnetic Field | Emf Induced | Magnetic Circuit

EMF Induced in a Rotating Coil Placed in a Magnetic Field :  👉 Consider a coil AB placed on the outer periphery of a soft iron solid cylindrical rotor. The stator poles  carry the exciting coils. When current flows through exciting coils flux is set up as shown in Fig. 1.  The rotor is rotating in the clockwise direction at a constant angular velocity of Z radians/sec. The  direction of the linear velocity (perpendicular to the plane of the coil) acting on conductor A is shown in Fig. 1 which makes an angle T with the direction of the field. The component of velocity perpendicular to  the field is v p  = v sin T .                                                                      FIG: 1 The emf induced in conductor A , e = Blv sin T Where, B = f...
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Types of Network Element | Active and Passive Network | linear and Non-linear Network | Circuit elements

In this article, we will discuss what are the basic network elements and types of network elements.   Types of network elements We can classify the Network elements into various types based on some parameters. Following are the types of network elements −  Active Elements and Passive Elements    Linear Elements and Non-linear Elements   Bilateral Elements and Unilateral Elements    Lumped Elements and Distributed Elements Active Elements and Passive Elements  Active or passive based on the ability to deliver power. Active Elements deliver power to other elements, which are present in an electric circuit. Sometimes, they may absorb the power like passive elements. That means active elements have the capability of both delivering and absorbing power. Examples: Voltage sources and current sources.   Passive Elements can’t deliver power (energy) to other elements, however, they can absorb power. That means these elements eith...
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