If electric wires and appliances are overheated due to high voltage of electric current they can
Using a high current fuse in a low current appliance is very
Soft materials absorb large amount of
A six sigma process has defect level below ______ defects per million opportunities
A zero watt lamp consumes
Melting temperature of tungsten is
The output of a tungsten filament lamp depends on
1/2 hour rated motors are used for
Which photometer depends for its operation on Inverse Square Law
Lumen/watt is the unit of
For the same wastage which lamp is cheapest
Taj mahal is built of ----- marble
Which photometer is used for comparing the lights of different colors
Which gas is sometimes used in filament lamps