Why, I cannot see the plot when I type of the following code:
In[56]:= << PhysicalConstants` (* tick mark used, next to number 1 \
key*)
In[57]:= BoltzmannConstant
Out[57]= (1.38065*10^-23 Joule)/Kelvin
In[58]:= Vt[T_] := BoltzmannConstant*T/ElectronCharge
In[111]:= Vt[1]
Out[111]= (0.0000861734 Joule)/(Coulomb Kelvin)
In[60]:= Ies = 10^-9 (* Unita A Transistor reverse current *)
Ic[Vbe_, T_] := Ies*(Exp[Vbe/(Vt[T])] - 1)
In[116]:= Plot[Ic[Vbe, 273], {Vbe, 0, 0.7}]
