Chapter14 - Cathode Ray Oscilloscope

Exa 14.1 page 290

In [1]:
R=3 
V_pp =10*6 
Vrms=V_pp/(2*2**0.5) 
Irms=Vrms/R 
print "R.M.S. value of current=%.2f A"%(Irms)

R.M.S. value of current=7.07 A

Exa 14.2 page 290

In [2]:
T=3*10**-3 
f=1/T 
print "frequency of the voltage applied=%.2f m"%(f)

frequency of the voltage applied=333.33 m

Exa 14.3 page 290

In [3]:
tc=2*2.5 
print "time constant=%.6f ms"%(tc)
R=5*10**3 
C=(tc*10**-3/R)*10**6 
print "Capacitance=%.2f uF"%(C)
Tmax=10*R*C*10**-6 
fmax=1/Tmax 
print "Maximum frequency=%.2f m"%(fmax)

time constant=5.000000 ms
Capacitance=1.00 uF
Maximum frequency=20.00 m