Physics · Current Electricity
What is the primary physical cause of the heating effect (Joule heating) in a metallic conductor when electric current passes through it?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The radiation emitted by static electric fields
- 2Collisions of moving free electrons with the lattice ions of the conductor✓
- 3Absorption of external heat from the ambient surroundings
- 4The movement of protons inside the nucleus
Correct answer
Collisions of moving free electrons with the lattice ions of the conductor
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