2021 · Q107
Who amongst the following is a pioneer in discovering the heating effect of electric current ?
General KnowledgePhysics
- AIsaac Newton
- BGalileo Galilei
- CJames P. Joule
- DJ. J. Thomson
Explanation
James Prescott Joule established the heating effect of electric current, expressed in Joule's law of heating (H = I²Rt). Isaac Newton, Galileo Galilei and J. J. Thomson are associated with gravitation/optics, astronomy, and the electron respectively — not the heating effect. The pioneer was James P. Joule.