Added by Ranjeev Mishra on August 22, 2002 at 00:59:13:
A transistor has three terminals - base, collector and the emitter and the initial letters of the same are used with V or I to represent individual voltage and current values.
...............Ic...............Ie
Hfe ~= ---------- ~= ---------
...............Ib...............Ib
Hfe is the current gain and is usually very large for signal strength transistors. Around 10 for power amplifiers.