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Question S1.5: For the circuit in Figure S1-1, assume that VBO for the DIAC...

For the circuit in Figure S1-1, assume that V_{ BO } for the DIAC is 30 V, C_1 is 1 μF, R is adjustable in the range 1-20 kΩ, and that switch S_1 is open. What is the firing angle of the circuit when R is 10 kΩ? What is the rms voltage on the load under these conditions?

Note: Problem 3-5 is significantly harder for many students, since it involves solving a differential equation with a forcing function. This problem should only be assigned if the class has the mathematical sophistication to handle it.

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