Question 501Electricity & Electronics - Assistant Engineer

The correct answer is B) rectifiers. Germanium semiconductor diodes are commonly used in rectifier circuits. Rectifiers are electronic devices that convert alternating current (AC) into direct current (DC) by allowing current to flow in only one direction. Germanium diodes have a relatively low forward voltage drop compared to silicon diodes, making them well-suited for use in low-power rectifier circuits. The other answer choices are incorrect because potentiometers are variable resistors, power sources generate electrical power, and photocells are light-sensitive devices, none of which are the primary application for germanium semiconductor diodes.