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Step 1 of 2 18.047P Refer to Figure 18.31 (a) in the textbook for the astable circuit. Write the expression for the Duty cycle of the astable circuit. Duty cycle = Here, the Duty cycle is 80% Find the relation between and RB = + 2R, 100 = Step 2 of 2 The frequency of the circuit is f = 20 Calculate the time period. = 50 Write the expression for the time period of the astable circuit. Substitute the corresponding values. II 50 = RB = 21.31 kΩ Calculate the value of = 63.93 kΩ Therefore, the resistor values are = 63.93 kΩ and = 21.31 kΩ