The two elements that are frequently used for making transistors are :
- A. Boron and aluminium
- B. Silicon and Germanium
- C. Iridium and Tungston
- D. None of these
Explanation
Silicon and germanium are semiconductors whose electrical conductivity can be controlled by doping, making them suitable for transistor construction. Boron and aluminium are commonly used as dopants, not as the main semiconductor material in this context.