SSC JE EE Quiz: Utilization and Electrical Energy Booster Quiz-15

The colour of light produced by discharge lamp is orange-red due to discharge of _____?

_______ method has leading power factor?

Which law states the following?

Illumination, E at any point on a surface is directly proportional to the cosine of theangle between the normal at that point and the line of flux':

Which of the following symbol represents Filament lamp?

Which of the following is not a type of resistance welding

The luminous efficiency of a sodium vapour-discharge lamp is in the range of ?

Carbon lamps are commonly used in?

Which of the following methods of heating is most suitable for drying of paints?

Average life of incandescent lamp is?

Recommended level of illumination for school and colleges is?