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A single-phase transformer has 2400 turns on the primary and 600 turns on the secondary.
Its no-load current is 4A at a power factor of 0.25 lagging.
Suppose the volt drop in the windings is negligible, measure the primary current and power factor when the secondary current is 80A at a power factor of 0.8 lagging.
microscopic view of ohms law
Some phenomenon based on scattering: (i) Sky looks blue because of scattering. (ii) At the starting time of sunrise or sunset sun looks reddish. (iii) Danger signals are
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Conductor: Conductors are those substances which permit electric current to passes easily by them. e.g. Metal, impure, water etc.
The greatest induced EMF will occur in a straight wire moving at constant speed through a uniform magnetic field when the angle between the direction of the wire's motion and the d
p-type semiconductor: Consider a trivalent impurity such as Gallium (Ga, Z = 31) is doped in a pure semiconductor germanium (Ge, Z = 32). Each Ga atom forms three covalent bonds
Explain the Diagramming Waves? There are two ways that waves can be indicated in a two-dimensional diagram. Parallel lines can be drawn that are meant to show the position of
what is expansion of solids
The heating elements of electric irons are made of (A) Copper. (B) Nichrome. (C) Constantan. (D) Aluminium. Ans: The heating components of electric irons ar
is it possible for the couple forces to be more than two?
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