Answer the question below (a)

3 Most electronic components in electrical devices are made up of . semiconductors such as diodes, transistors, capacitors, and resistors. Due to their semiconducting properties, these components have become very small and conduct electricity efciently. (3) Figures D1 and DZ below show two circuits with identical components. Each circuit contains an ammeter, a cell, and a semiconductor diode. (i) Give ONE example of a semiconductor material. (ii) Observe Figures D1 and D2. State the differences between the diodes' connection and the ammeters' reading. (iii) Give TWO reasons that cause the difference between the reading of the ammeters in Figure D1 and D2. (iv) Based on the answers in (a}(iii), what is the function of the diodes in these circuits