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Find IB, IC & VCE for following circuit.
1 Answer
written 3.5 years ago by |
Answer:
To find $I_B$
Applying KVL to the base -emitter loop , we get
$5=V_{BE}+I_ER_E$
Substitute $I_E=(1+\beta)I_B$
$\therefore 5-0.7=(1+\beta)I_BR_E$
$\therefore 5-0.7=(1+100)I_B\times 1 \times 10^3$
$\therefore I_B=0.0425mA$
The emitter current can also be found by using ,
$I_E=101 \times 0.0425 \times 10^{-3}=4.29mA$
Now , $ I_C=\beta I_B$
$\therefore I_C=100 \times 0.0425 \times 10^{-3}=4.25mA$
Applying KVL to collector loop we get ,
$10-I_CR_C-V_{CE}-I_ER_E=0$
$10=I_CR_C+V_{CE}+I_ER_E$
$10=4.25 \times 0.5+V_{CE}+4.29$
$\therefore V_{CE}=10-2.125-4.29=3.585V$