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For a CE-transistor amplifier, the audio...

For a CE-transistor amplifier, the audio signal voltage across the collector resistance of `2kOmega` is `2V`. Suppose the current amplification factor of the transistor is `100`, find the input signal voltage and base current, if the base resistance is `1kOmega`.

Text Solution

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`R_(gain)=(2KOmega)/(1KOmega)=2`
`V_(out)=R_(out)xxI_(out)`
`V_("in")=R_("in")xxI_("in")`
`(V_(out))/(V_("in"))=(R_(out))/(R_("in"))xx(I_(out))/(I_("in))=2xx100`
`impliesV_("in")=(V_(out))/(200)=(2)/(200)=0.01"volt"`.
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