π Key Concepts
β’ Compare the roles of cathode, grid, and plate in a conventional triode tube to the roles of emitter, base, and collector in a transistor
β’ Think about which element controls the current flow in each device
β’ Consider which elements are mainly responsible for current supply, control, and collection in both devices
π Think About
β’ In a triode tube, which element emits electrons, which one controls their flow, and which one collects them?
β’ In a transistor, which element is the main source of charge carriers, which one controls the current, and which one receives most of the current?
β’ Once you match the control, source, and destination roles between the tube and transistor, do all three pairs line up consistently?
β
Before You Answer
β’ Identify clearly: which element is the control element in each device (grid vs. base)
β’ Verify: which elements act as the main source and main receiver of current (cathode vs. emitter, plate vs. collector)
β’ After matching each pair, check if every single statement in A, B, and C is correct before deciding whether D can be true