What is heating effect of Electric current? Name the various devices in which this effect is utilised
Answers
when the conductor is conneced to the source of electricity like a dry cell, the free electrons begin When the drift from negative terminal positive terminal of the conductor. But the motion of free electrons in the conductor is not smooth.They collide with the atoms or ions of the conductor. As a result in the collisions, the kinetic energy or ree electrons is transfered to the ions of the conductor So the atoms or ions vibrate with large amplitudes about their mean positions, Hence, the average kinetic energy or total energy of the ions increases, The increase in the energy of ions increases the temperature f the conductor. Thus, heat is produced when electric current flows through the metallic conductor.
Electric iron , electric geyser,water heater, etc