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# Solution: If the power gain of the amplifier is 5 × 10^6, the input resistance is

#### Problem Statement: Electronic Devices and Circuits

Electronic Circuits: Power Gain Problem Solving

In a common emitter transistor amplifier, the output resistance is 500 KΩ and the current gain β = 49. If the power gain of the amplifier is 5 × 10^6, the input resistance is

A. 325 Ω

B. 165 Ω

C. 225 Ω

D. 240 Ω

The input resistance of the common emitter transistor amplifier is equal to 240 Ω.

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