Induction Motor Speed of Stator magnetic field = Ns Speed of rotor = Nr Slip, S = (Ns-Nr) / Nr As the stator magnetic field rotates at Ns and the rotor rotates at Nr in the same direction the relative speed of magnetic field with respect to conductor is Ns-Nr In case of Induction motor […]


In paramagnetic material magnetic dipoles already exist due to spin of unpaired electron in an atom. In paramagnetic material magnetic dipoles are randomly oriented but when magnetic field is applied such dipoles align parallel to external magnetic field.                              Due to positive susceptibility the flux density inside the paramagnetic material increases. In a paramagnetic material […]


India is the world’s third largest producer and third largest consumer of electricity. The national electric grid in India has an installed capacity of 375.32 GW as of 31 December 2020. Renewable power plants, which also include large hydroelectric plants, constitute 36.17% of India’s total installed capacity. During the 2019-20 fiscal year, the gross electricity […]


A transformer (Fig. (A)) is a static device that consists of two or more stationary electric circuits interlinked by a common magnetic circuit to transfer electric energy between them. The transfer of energy from one circuit to another takes place without a change in frequency. What are Step-up and Step-down Transformers? This is a very […]