Question

In an $n-p-n$ transistor in CE configuration, when $V_{C E}$ is increased, then

• A. $I_{B}$ increases and $I_{C}$ increases proportionally
• B. $I_{B}$ increases and $I_{C}$ remains constant
• C. effect on $I_{B}$ is negligible but $I_{C}$ increases
• D. Both $I_{B}$ and $I_{C}$ remain nearly constant

Answer 1

Answer: (C)

$I_{B}$ does not depend on $V_{C E}$. So, when $V_{C E}$ is increased, $I_{B}$ remains constant. $I_{C}$ increases till saturation.