Principle

In the
household, electrical energy is used for cooking, for heating water
with the aid of boilers, or for electric heating. Many electric
appliances become warm or hot during their operation. This means
that the conversion of electrical energy into thermal energy often
takes place although it is not intended. During this experiment,
water inside a calorimeter is heated with the aid of a heating
coil. The relationship between heating power, electric work
(required electrical energy), and temperature increase will be
studied.