In common emitter amplifier, the current gain is 62. The collector resistance and input resistance are `5kOmega and 500Omega` respectively. If the input voltage is 0.1 V, the output voltage is

Options

A. A)0.61 V
B. B)6.2 V
C. C)62 V
D. D)620 V

Answer

B

Explanation

Voltage gain = resistance gain `xx` current gain
or `(V_("out"))/(V_("int"))=(R_("out"))/(R_("in"))xxbeta`
or `V_("out")=(R_("out"))/(R_("in"))xxbetaxxV_("in")`
`therefore V_("out")=(5000)/(500)xx62xx0.01=6.2V`