Why is tungsten metal selected for making filaments of incandescent lamps?
(N/A) Tungsten is selected for making the filaments of incandescent lamps because it has a very high melting point (approximately $3380 \, ^\circ C$).
This high melting point allows the filament to become white-hot and emit light without melting away when a large amount of electric current passes through it.
This high melting point allows the filament to become white-hot and emit light without melting away when a large amount of electric current passes through it.
Explore More
Similar Questions
When two resistors of resistances $R_{1}$ and $R_{2}$ are connected in parallel,the net resistance is $3 \, \Omega$. When connected in series,its value is $16 \, \Omega$. Calculate the values of $R_{1}$ and $R_{2}$.
Difficult
View SolutionWhich alloy is used to make the heating element (resistance wire) in an electric iron?
Easy
View SolutionDefine electric current and state its $SI$ unit. With the help of $Ohm's$ law,explain the meaning of $1$ ohm resistance.
Medium
View SolutionWhat are the conditions under which $Ohm's$ law is not obeyed?
Medium
View SolutionWhich of the following is a semiconductor element?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo