from __future__ import division
#Cal of Frequency,Velocity,Amplitude
#Initialization
T=4 #Time period in s
Lambda=30 #wavelength in m
f=0.25 #Frequency in Hz
tot_range=2 #in m
#Calculation
f=1/T
v=f*Lambda
print "(a) f=",f,"Hz"
print "(b) v=",v,"m/s"
print "(c) The amplitude is half the total range,hence A=",int(tot_range/2),"m"
from __future__ import division
#Cal of Frequency
#Initialization
v=25 #Wave velocity in cm/s
Lambda=0.1 #Wavelength in mm
#Calculation
Lambda=Lambda/1000 #Convert Wavelength in m
v=v/100 #Convert wave velocity in m/s
f=v/Lambda
print "f=",int(f),"Hz"
from __future__ import division
#Cal of Wavelength
#Initialization
v=5020 #Velocity in ft/s
f=256 #Frequency in Hz
#Calculation
Lambda=v/f
print "Lambda=",round(Lambda,1),"ft"
from __future__ import division
#Cal of Frequency
#Initialization
Lambda=3.2 #Wavelength in cm
c=3E+8 #Velocity of light in m/s
#Calculation
Lambda=Lambda/100 #Convert Wavelength in m
f=c/Lambda
print "f=",'%0.1E' % f,"Hz"
from __future__ import division
#Cal of Effective ac potential difference
#Initialization
Vmax=300 #Potential difference in V
#Calculation
Veff=0.707*(Vmax)
print "Veff=",int(Veff),"V"
from __future__ import division
#Cal of Effective current
#Initialization
Imax=10 #Current in A
R=20 #Resistance in Ohm
#Calculation
Ieff=0.707*Imax
P=(Ieff**2)*R
print "Ieff=",Ieff,"A"
print "P=",int(round(P)),"W"
from __future__ import division
#Cal of Secondary voltage and current
#Initialization
N1=100 #No.of turns in primary winding
N2=500 #No. of turns in secondary winding
V1=120 #Primary voltage in V
I1=3 #Primary current in A
#Calculation
V2=(N2/N1)*V1
I2=(N1/N2)*I1
print "V2=",int(V2),"V"
print "I2=",I2,"A"
from __future__ import division
#Initialization
V1=5000 #primary voltage in V
V2=240 #Secondary voltage in V
P=10 #Power in kW
#Cal of Ratio of turns
N1_N2=V1/V2
P=P*1000 #Convert power in W
#Cal of Maximum current
I2=P/V2
print "(a) N1_N2=",round(N1_N2,1)
print "(b) I2=",round(I2,1),"A"