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POWER SYSTEMS

Power Systems
The fact that current density is higher at the surface when compared to centre is known as

 carona
 proximity effect
All of these
 skin effect

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Power Systems
The presence of earth in case of overhead lines

 decrease capacitance
 decrease inducatance
 increase inductance
 increase capacitance

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Power Systems
The term self GMD is used to calculate

 resistance
 capacitance
 both 1 and 2
 inductance

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Power Systems
Inductance of transmission line will decrease when

 GMD decrease and GMR increase
 both GMD and GMR increase
 GMD increase and GMR decrease
 both GMD and GMR decrease

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Power Systems
If we increase the spacing between the phase conductors, the line capacitance

 decreases
 increases
 remains unaffected
None of these

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