Conductor carries more current on the surface in comparison to its core, this phenomena is called (a) Skin effect (b) Corona (c) Ferranti effect (d) Lenz's effect The inductance of single phase two wire power transmission line per kilometer gets doubled when (a) Distance between the wires is doubled (b) Distance between the wires is increased four fold (C) Distance between the wires is increased as square of original distance (d) Radius of the wire is doubled Inductance of overhead line in comparison to that of a cable of same capacity is (a) Larger (b) Smaller (c) Of the same order (d) None of above Ratio of line to line capacitance and line to neutral capacitance is (a) 0.5 (b) 0.25 (c) 2 (d) 4 If the separation between three phases of a transmission line is increased then (a) Inductance will increase and capacitance will remain unchanged (b) Both the inductance and capacitance will increase (c) Inductance will increase and capacitance will decrease (d) Inductance will decrease and capacitance will increase

Conductor carries more current on the surface in comparison to its core, this phenomena is called (a) Skin effect (b) Corona (c) Ferranti effect (d) Lenz's effect The inductance of single phase two wire power transmission line per kilometer gets doubled when (a) Distance between the wires is doubled (b) Distance between the wires is increased four fold (C) Distance between the wires is increased as square of original distance (d) Radius of the wire is doubled Inductance of overhead line in comparison to that of a cable of same capacity is (a) Larger (b) Smaller (c) Of the same order (d) None of above Ratio of line to line capacitance and line to neutral capacitance is (a) 0.5 (b) 0.25 (c) 2 (d) 4 If the separation between three phases of a transmission line is increased then (a) Inductance will increase and capacitance will remain unchanged (b) Both the inductance and capacitance will increase (c) Inductance will increase and capacitance will decrease (d) Inductance will decrease and capacitance will increase

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.36MCQ: When the electric field strength at a conductor surface exceeds the break-down strength of air,...

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