4. Formation of a permanent conducting path across a surface of solid insulation iscalled as:a) Trackingb) Flashoverc) Oxidationd) Erosion5. The ripple voltage in the d.e. output is small ifa) frequency of supply is highb) the filtering capacitor is smallc) the load current is larged) none of the above is true6. A Van de Graaff generator has a belt speed of 3 m/s, charge density of 12 pc/m2 anda belt width 2 m. The maximum charging current is:a) 45 µAb) 50 LAc) 72 uAd) 81 µA

Since ou have asked multiple question ,we will slove the first question for you. If you want any…

Answered: rmation of a permanent conducting path…

rmation of a permanent conducting path across a surface called as: a) Tracking b) Flashover c) Oxidation d) Erosion insulation is

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

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.45P

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Concept explainers

Electric field

A physical field present around an electrically charged particle that exerts a force on all other charged particles is called an electric field. The charged particles present in the field either repel or attract. From electric charges or time-varying magnetic fields, the electric field originates. One of the manifestations of electromagnetic force which is one of the four fundamental forces present in nature are the electric fields and magnetic fields.

Question

4. Formation of a permanent conducting path across a surface of solid insulation is
called as:
a) Tracking
b) Flashover
c) Oxidation
d) Erosion
5. The ripple voltage in the d.e. output is small if
a) frequency of supply is high
b) the filtering capacitor is small
c) the load current is large
d) none of the above is true
6. A Van de Graaff generator has a belt speed of 3 m/s, charge density of 12 pc/m2 and
a belt width 2 m. The maximum charging current is:
a) 45 µA
b) 50 LA
c) 72 uA
d) 81 µA

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