2021 Problem 02
2021 Problem 02
Isaac P Abraham
2020 Dec 25
2020 Dec 25
The resistance of a 220 V, 100 W electric bulb taken out of your stash box is measured by a multimeter to be 35 Ω. However, calculation tells us to expect ,
R=Ω
2
V
W
(220^2/100)Ω
Out[]=
484Ω
How can we explain the discrepancy?
Ref: Valerii Ilyushchenko (translated by V.N. Lange), "Science for everyone", Mir Publishers, Moscow, USSR.
Reply by email to isaac.abraham@intel.com with subject “Analog Beat 2021 Problem 02” and your answer in the body of the email. Answers are due by 2021 Feb 26, Friday.