Back emf effect in motor
Back emf effect Motor The emf induced which opposes the emf running the motor is called the back emf of …
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DC Motor: Its principle, construction and working
D.C. Motor It is a device that converts electrical energy into mechanical energy. Principle When the current-carrying coil is placed …
Back Motor Effect in Generators
The torque produced in the coil due to the current in the coil which opposes the rotational motion of the …
DC Generator its principle, construction and working
DC Generator It is a device that converts mechanical energy into electrical energy and produces direct current and direct emf. …
Alternating Current Generator: its principle, construction, and working also derived expression for induced emf
Alternating Current Generator It is a device that converts mechanical energy into electrical energy and generates alternating current is called …
Expression for Energy Stored in an Inductor and Energy density
Energy Stored in an Inductor Consider a coil connected to a battery through switch S. When the switch is turned …
Self Induction, Circuit Construction, Working, Expression and unit
Self Induction The phenomenon in which a changing current in a coil produces an induced emf in the same coil …
Mutual Induction, its construction, Its working, drive its expression and unit
Mutual induction The phenomenon in which a changing current in one coil produces an induced emf in another coil is …
Define and explain Lenz’s Law
Lenz’s law and direction of induced EMF The direction of the induced current is always such to oppose the change …
Define and Explain Faraday’s Law
Faraday’s Law The average induced emf in conducting coil of the N loop is equal to the negative of N …