what is the difference between current amplification factor and current gain?[ce and cb]

@ nayana 
The current amplification factor is besically the ratio of the output current to the input current when its passing through an electrical devices . so, it gives us the amount of current gain as it flows through . 
AND THERE IS NO SUCH DIFFRENCE BETWEEN CURRENT AMPLIFICATION FACTOR AND CURRENT GAIN . 
BOTH ARE SAME CONCEPT . 
HOPE U UNDERSTOOD . 
ALL THE BEST ..