A common base transistor amplifier has an input resistance of 20‚Äö√Ñ√∂‚àö√´¬¨‚àÇ and output resistance of 100k‚Äö√Ñ√∂‚àö√´¬¨‚àÇ. If a signal of 400mV is applied between emitter and base, find the voltage amplification. Assume ‚âà√≠¬¨¬±ac to be one.$

A common base transistor amplifier has an input resistance of 20‚Ä�

1.	A common base transistor amplifier has an input resistance of 20‚Äö√Ñ√∂‚àö√´¬¨‚àÇ and output resistance of 100k‚Äö√Ñ√∂‚àö√´¬¨‚àÇ. If a signal of 400mV is applied between emitter and base, find the voltage amplification. Assume ‚âà√≠¬¨¬±ac to be one.$
A.	20
B.	50
C.	30
D.	25
Answer» C. 30