A house hold 20 liter geyser consist of a coil of resistance

Last updated: 6/12/2023

A house hold 20 liter geyser consist of a coil of resistance R across which an ac source of rms voltage V is connected The wall thickness of geyser is t A and the inner surface area of geyser is A The average thermal conductivity of material of walls of geysers is k and S is specific heat capacity of water Assuming initial temperature of water is equal to the temperature of atmosphere The time taken to rise the temperature of water by 50 C is Neglect the specific heat of walls of geyser and radiation losses 2St 50RKA A tV V t 50RKA KA tV In B 20St In KA