JEE Main 2005 — Current Electricity Question with Solution
JEE Main 2005
Question
The resistance of hot tungsten filament is about 10 times the cold resistance. What will be the resistance of and lamp when not in use?
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
cold resistance
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Current Electricity chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2005, covering the Current Electricity chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.