In an immersion type boiler, where does the current flow?

In an immersion type boiler, the current primarily flows through the heating element. This type of boiler utilizes a heating element that is completely immersed in water. The design ensures that the element is efficiently heated by the electrical energy supplied to it. As the current passes through this heating element, it generates heat, which is then transferred to the surrounding water, causing it to heat up and eventually produce steam.

The effectiveness of the immersion heater lies in its direct contact with the water, which allows for optimal heat transfer. This method is advantageous, as it leads to quicker heating times and higher efficiency when it comes to converting electrical energy into thermal energy. The design also facilitates easy maintenance and replacement of the heating element when necessary. Thus, while water does play a crucial role in the heating process by absorbing the heat, the actual flow of electrical current occurs through the heating element itself, making it the correct answer.