Chapter 5 Digital voltmeters

Example 5.1 Page no 134

In [6]:
#Given
R=100.0*10**3                           #ohm
C=1.0*10**-6                            #Farad
ei=1
t1=1                                  #second 

#Calculation
E=(ei*t1)/(R*C)

#Result
print"Voltage present at the output of the integrator after 1s is ", E,"V"

Voltage present at the output of the integrator after 1s is  10.0 V

Example 5.2 Page no 134

In [8]:
#Given
e1=1
er=5.0                                               #Volts
t1=1                                                 #Second

#Calculation
t2=ei*t1/er

#Result
print"Time interval of t2 is ", t2,"s"

Time interval of t2 is  0.2 s

Example 5.3 Page no 134

In [5]:
#Given
R=100.0*10**3                   #ohm
C=2.0*10**-6                   #farad
e1=2                           #volts
t1=2                           #S

#Calculation
e0=(e1*t1)/(R*C)

#Result
print"The output of the integrator is ", e0,"Volts"

The output of the integrator is  20.0 Volts

Example 5.4 Page no 134

In [8]:
#Given
e1=2                              #Volts
t1=2                               #second
e2=10.0                             #Volts

t2=(e1*t1)/e2
print"Time interval is ",t2,"second"

Time interval is  0.4 second

Example 5.5 Page no 141

In [3]:
#given
n=3

#Calculation
R=1/10.0**n

#Result
print"The resolution is ", R

The resolution is  0.001

Example 5.6 Page no 141

In [13]:
#Given 
n=5
V=12.98                   #Volts
V1=1                      #Volts
V2=10                      #volts

#Calculation
R=1/10.0**n
R1=V1*R
R2=V2*R

#Result
print"(i) Resolution is ", R
print"(ii) Any reading upto 4th decimal can be displayed. \n Hence this will be displayed as 0.6973"
print"(iii) Resolution is ",R2,"\n Hence decimal upto 3rd decimal place can be displayed"
print"therefore on a 10 V range, the reading will be 0.697 instead of 0.6973"

(i) Resolution is  1e-05
(ii) Any reading upto 4th decimal can be displayed. 
 Hence this will be displayed as 0.6973
(iii) Resolution is  0.0001 
 Hence decimal upto 3rd decimal place can be displayed
therefore on a 10 V range, the reading will be 0.697 instead of 0.6973