If alpha = 0.98 and current through emitter i e = 20 mA, the value of beta is (a) 4.9 (b) 49 (c) 96 (d) 9.6
Added by Ashu G.
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98 and we need to find the value of beta using the formula beta = alpha / (1 - alpha). ** Show more…
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If $\alpha=0.98$ and current through emitter $i_{e}=20 \mathrm{~mA}$, the value of $\beta$ is (A) $4.9$ (B) 49 (C) 96 (D) $9.6$
In a common base amplifier circuit, calculate the change in base current if that in the emitter current is $2 \mathrm{~mA}$ and $\alpha=0.98$ (a) $0.04 \mathrm{~mA}$ (b) $1.96 \mathrm{~mA}$ (c) $0.98 \mathrm{~mA}$ (d) $2 \mathrm{~mA}$
Electronic Devices
Round 2
In a common base amplifier circuit, calculate the change in base current, if that in the emitter current is $2 \mathrm{~mA}$ and $\alpha=0.98$. (a) $0.04 \mathrm{~mA}$ (b) $1.96 \mathrm{~mA}$ (c) $0.98 \mathrm{~mA}$ (d) $2 \mathrm{~mA}$
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