a) Capacitance b) Inductance c) Resistance d) All of these Ans: (d)
a) Increased inductance b) Increased reactance c) Increased power loss d) All of these Ans: (c)
a) G M D is high b) G M R is high c) Both G M D and G M R are high d) G M D is low but G M R is high Ans: (d)
a) Size of conductor b) Shape and surface condition of the conductor c) Operating voltage d) All of these Ans: (d)
a) Radius of the wore is double b) Distance between the wires is increased as square of the original distance c) Distance between the wires is doubled d) Distance between the wires is doubled Ans: (b)
a) Increases b) Decreases c) Remains same with increase in its length d) None of these Ans: (a)
a) Ozone gas is produced b) works as a safety valve for surges c) makes line current sinusoidal d) produces a pleasing luminous glow Ans: (b)
a) assists ionization b) makes the current flow spirally about the axis of the conductor c) produces oblique sections to a plane perpendicular to the axis of the conductor d) produces surfaces of smaller radius Ans: (d)
a) permeability of conductor material b) x-section of conductor c) Resistivity of the conductor material d) Supply frequency Ans: (c)
a) Phase voltage imbalances can be minimized b) Voltage drop in the lines can be minimized c) Computations of inductance becomes easier d) Corona losses can be minimized Ans: (a)