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   "source": [
    "# Chapter 32 : Thyristors"
   ]
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   "metadata": {},
   "source": [
    "## Example No. 32_1 Page No. 1058"
   ]
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     "text": [
      "The Frequency of the Emmiter Voltage Waveform = 49.61 Hertz\n"
     ]
    }
   ],
   "source": [
    "from math import log\n",
    "# Calculate the frequency of the emmiter voltage waveform. Assume n=0.6\n",
    "\n",
    "# Given data\n",
    "\n",
    "Rt = 220*10**3#      # Resistor Rt=220k Ohms\n",
    "Ct = 0.1*10**-6#     # Capacitor Ct=0.1u Farad\n",
    "n = 0.6#            # Constant\n",
    "\n",
    "A = 1./(1-n)#\n",
    "T = Rt*Ct*log(A)#\n",
    "\n",
    "f = 1./T#\n",
    "print 'The Frequency of the Emmiter Voltage Waveform = %0.2f Hertz'%f"
   ]
  }
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