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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.
Q. Give the applications of Moseley's law. (i) The elements are organized in the periodic table according to the atomic numbers and not according to the atomic weights. (ii
A 2.5 kg rock is located on the Earth''s surface. If the mass of the moon is 7.4 E 22 kg, and the separation distance between the center of the rock and the center of the moon is 3
What should be the length of the dipole antenna for a carrier wave of Frequency 3 X 1O 8 Hz? Define 'electric line of force' and give its two important properties.
Proton was discovered by: (1)Chadwick (2)Thomson (3)Goldstein (4)Bohr Ans: (3)Goldstein
Superfluidity: The phenomena through which, at sufficiently low temperatures, a fluid can flow along zero viscosity. Its causes are related with superconductivity.
A ring forming a magnetic circuit is made from two materials; one part is mild steel of mean length 25cm and cross-sectional area 4cm 2 , and the remainder is cast iron of mea
Explain thew laws of physics It is thought that the laws of physics do not change from place to place. This is why experiments carried out in different countries by dissimilar
Q. In an ideal transformer, the transformer ratio is 1:20.The input voltage and the input power are 6 V and 600 mW respectively. Compute the primary and the secondary currents.
Will there be any change in hz of sound if two vibrating body has the similar hz Ans) Yes it depends on the path difference among them... Like in destructive inteference u
Depending upon the penetration power, there are two parts of X-rays Hard X-rays More penetration power More frequency of the order of ≈ 1019 Hz Lesser wavelength range
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