railway RRB Technician Grade 1 Mock Test 2024 Physics Current, Resistance and Electricity Temperature Dependence of Resistivity
Tungsten is used for making bulb filaments of incandescent lamps because:
1
Tungsten has the highest boiling point.
2
Tungsten takes a long time to reach its melting point
3
Tungsten becomes extremely bright when it glows for long hours.
4
Tungsten has the highest melting point and does not melt even while it is glowing for long hours .