Physics · Joule Heating
A hollow steel pipe of length 2 m, outer diameter 5 cm, and inner diameter 4 cm is used for resistance heating. The resistivity of steel is 40 × 10-8 Ω·m. If a current of 200 A flows through the pipe, what is the total heat generated in 10 minutes?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 164.75 kJ
- 242.84 kJ✓
- 327.1 kJ
- 413.5 kJ
Correct answer
42.84 kJ
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