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In the circuit shown in Fig. when the in...

In the circuit shown in Fig. when the input voltage of the base resistance is `10V, V_(be)` is zero and `V_(ce)` is also zero. Find the values of `I_, I_` and `beta`.

Text Solution

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Given, woltage across `R_(B) = 10V`
Resistance `R_(B) = 400 k Omega`
`V_(BE) = V_(CE) = 0 R_(C) = 3 k Omega`
`I_(B) = ("Voltage across " R_(B))/(R_(B))`
`= (10)/(400 xx 10^(3)) = 25 xx 10^(-6) A = 25 mu A`
Voltage across `R_(C) = 10 V`
`= 3.33 xx 10^(-3) A = 3.33 mA`
`beta = (I_(C))/(I_(B)) = (3.33 xx 10^(-3))/(25 xx 10^(-6))`
`= 1.33 xx 10^(2) = 133`
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