For a transistor in common emitter configuration _______________ is the ratio of change in collector-emitter voltage (ΔVCE) to the change in collector current (ΔIC) at a constant base current 'IB'.

For a transistor in common emitter configuration _______________ is th

1.	For a transistor in common emitter configuration _______________ is the ratio of change in collector-emitter voltage (ΔVCE) to the change in collector current (ΔIC) at a constant base current 'IB'.
A.	Output resistance
B.	Input resistance
C.	Current amplification factor
D.	Voltage gain
Answer» B. Input resistance