Electrical Engineering MCQs

Page No. 197

A field line and an equipotential surface are____________?


aalways parallel


balways at 90°


cinclined at any angle 0


dnone of the above


View Answer always at 90°

The force between two charges is 120 N. If the distance between the charges is doubled, the force will be________________?


a60 N


b30 N


c 40 N


d15 N


View Answer 30 N

The ability of charged bodies to exert force on 6ne another is attributed to the existence of____________?


aelectrons


bprotons


cneutrons


delectric field


View Answer electric field

For making a capacitor, it is better to select a dielectric having___________?


alow permittivity


bhigh permittivity


cpermittivity same as that of air


dpermittivity slightly more than that of air


View Answer high permittivity

In alkaline cell the electrolyte is_____________?


adilute sulphuric acid


bconcentrated sulphuric acid


c NaOH


dKOH


View Answer KOH

A typical output of a solar cell is_____________?


a 0.1V


b0.26 V


c1.1 V


d1.1 V


View Answer 0.26 V

A constant-voltage generator has___________?


aminimum efficiency


b minimum current capacity


clow internal resistance


dhigh internal resistance



Which of the following factors adversely affects the capacity of the leadacid battery ?


aTemperature of surroundings


bSpecific gravity of electrolyte


cRate of discharge


dAll of the above


View Answer All of the above

In a lead-acid battery the energy is stored in the form of___________?


acharged ions


b chemical energy


celectrostatic energy


delectromagnetic energy


View Answer chemical energy

Satellite power requirement is provided through________?


asolar cells


bdry cells


cnickel-cadmium cells


dlead-acid batteries


View Answer solar cells

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