#initialisation of variable
from math import *
L=10*10**-9;#inductance
C=4*10**-12;#capacitance
#calculation
Z=(L/C)**.5;#impedence
#result
print"characteristics impedence is",round(Z,2),"ohm"
#initialisation of variable
from math import *
a=.05;#m
b=.025;#cm
d=.1;#m
c=3*10**8;#speed
#calculation
f=c/2*((1/a)**2+(1/d)**2)**.5;#frequency
#result
print"resonant frequncy is",round(f/10**9,3),"GHz"
#initialisation of variable
from math import *
b=10**-4;
W=6*10**-4;#width
F=3.3*10**5;#field
Q=2*10**12;#charge density
q=1.6*10**-19;#charge
D=11.9;
E=8.85*10**-14;#constant
#calculation
a=W-b;
Vb=(F*10**-4+(F-q*Q/D/E)*a);#brekdown voltage
Fd=13/a;#field
f=10**7/2/a;#frequency
#result
print"breakdown voltage is",round(Vb,2),"V"
print"field in drift region is",round(Fd,2),"V/cm"
print"frequency is",round(f/10**9,2),"GHz"
#initialisation of variable
from math import *
l=10;#length
L=10**-3;
v=10**7;#velocity
#calculation
t=L/v;#time
#result
print"time required is",round(t*10**9,2),"ns"
#initialisation of variable
from math import *
Lw=4.5;#nm
Vp1=700;#mV
Vp2=280;#mV
#calculation
V=Vp1-Vp2;
#result
print"ground water level is 140mV and peak width is 1meV for",round(Lw,1),"nm"
print"difference of voltage drop due to accumulation and depletion region is",round(V,2),"mV"