Question 268 of 380
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?
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Answer: (A)
cold resistance
Current Electricity
JEE Main level, single correct, medium
cold resistance
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JEE Main Physics practice question on Current Electricity (Electric Power and Heating Effect of Current), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.