Which law explains the heating effect of electric current?

Options

  • A. Joule’s law
  • B. Archimedes principle
  • C. Pascal’s law
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. Joule’s law

Detailed Explanation

Joule’s law of heating explains the heat produced when electric current flows through resistance. The heat generated is given by H = I²Rt, where I is current, R is resistance and t is time. This principle is used in electric irons, heaters, kettles, toasters and other heating appliances.