Ques : Usually, a filament of which element is used in halogen lights?
A. Copper
B. Tungsten
C. Carbon
D. Aluminium
Ans : B. Tungsten
Ques : Usually, a filament of which element is used in halogen lights?
A. Copper
B. Tungsten
C. Carbon
D. Aluminium
Ans : B. Tungsten