Question

The relation between collector current, saturation current and temperature is

• A. $I_C=I_S\left[e^{(e{V}_{BE}/KT-1)}\right]$
• B. $I_C=I_S\left[e^{(e{V}_{BE}T/K-1)}\right]$
• C. $I_C=I_S\left[e^{(e{V}_{BE}/KT+1)}\right]$
• D. $I_C=I_S\left[e^{(e{V}_{BE}T/K+1)}\right]$

Answer 1

The correct option is A $I_C=I_S\left[e^{(e{V}_{BE}/KT-1)}\right]$

The relation between collector current $\left(I_C\right)$, saturation current $\left(I_S\right)$ and temperature $\left(T\right)$ is:
$\left(I_C\right)=\left(I_S\right)[e^{e{V}_{BE}/KT}-1]$

where $V_{BE}=$ potential difference between base and emitter.
$k=$ Boltzmann constant $=1.38\times {10}^{-23}J{K}^{-1}$
$e=$ charge on an electron $=1.6\times {10}^{-19}C$
$T=$ Temperature in Kelvin