Define The Term Current Amplifications

  define the term current amplifications

current amplification is the ratio of output current to input current , in a common base  transistor connection it is the ratio of of change in collector current to the change in emitter current at a constant at a constant collector base voltage, given as α=∆I_C/∆I_E, base current amplification is the ratio of change in collector current to the change in base current, given by β=∆I_C/∆I_B . in a common collector connection current amplification is the ratio of change in emitter current to the change in base current , given by γ=∆I_E/∆I_B