# Define the Terms :Current Amplification Factor. How Are These Determined Using Typical Input and Output Characteristics? - Physics

Define the terms :Current amplification factor. How are these determined using typical input and output characteristics?

#### Solution

Current amplification factor (r) is defined as the ratio of change in emitter current (ΔIE) to the change in base current (ΔIB).

r=(DeltaI_E)/(DeltaI_B)

Concept: Junction Transistor - Transistor: Structure and Action
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