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A transformer takes a current of 0.8A when its primary is connected to a 240 volt, 50Hz supply, the secondary being on open circuit. If the power absorbed is 72 watts,
Determine
(a) the iron loss current,
(b) the power factor on no-load, and
(c) the magnetizing current.
Two straight, parallel, current carrying conductors are kept at a distance from each other, in air. The direction of present in both the conductors is the same. Find the magnitude
what are electromagnetids
Q. Distinguish between electric power and electric energy. Electric power i) Electric power is described as the rate of doing electric work. ii) Electric power is the cre
Chemical action in lead acid battery: When the lead acid battery is delivering current, the sulphuric acid breaks up into Hydrogen ions (H 2 ) carrying a positive charge and Su
Describe the magnetic moment of a bar magnet. What is its direction? Can you find two magnetic field lines intersecting? Why?
Use Thévenin's theorem to find the current ?owing in the 14Ω resistor of the network shown in Figure. Find also the power dissipated in the 14Ω resistor.
Explain about the crystalline solids in short. Crystalline solids: A solid possesses rigidity with a definite geometric pattern. Illustrations: Iron, silver, copper an
Hi Can u guide me how to solve numericals on Grouping of Capacitors. Thanks & Regards Raj
Can you explain Doppler effect? Find a mathematical expression for the apparent frequency heard when the source is in motion and the listener is at rest and also give limitation of
Dc machine consists of the following parts: Field system: The object of the field system is to make a uniform magnetic field, within which the armature rotates. It having of
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