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Disadvantages of A.C. Transmission of power
1. An a.c. line needs more copper than a d.c. line.
2. The construction of an a.c. transmission line is more complex than d.c. transmission line.
3. Because of skin effect in the a.c. system, the effective resistance of the line is enhanced.
4. An a.c. line has capacitance. Thus, there is a continuous loss of power because ofcharging current even when the line is open.
As electric field is conservation, work done and as potential difference among two points is path independent and depends only on the position of points between which the charge is
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Derive the mathematical expression PV r = constant for an ideal gas undergoing adiabatic reversible expansion.
The equation of an equipotential line in an electric field is y=2x then the electric field strength vector at (1,2) may be?
What is motion
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