a. At high levels of gate current, the characteristics of an SCR approach those of what two-terminal device?
b. At a fixed anode-to-cathode voltage less than V(BR)F*, what is the effect on the firing of the SCR as the gate current is reduced from its maximum value to the zero level?
c. At a fixed gate current greater than IG = 0, what is the effect on the firing of the SCR as the gate voltage is reduced from V(BR)F ?
d. For increasing levels of IG, what is the effect on the holding current?
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