111. In a foldback configuration, limiting the current reduces ________, protecting the load from overcurrent as well as protecting the regulator.
(a) the output voltage
(b) the output current
(c) both the output voltage and output current
(d) None of the above
112. Regulator IC units contain the circuitry for the ________.
(a) reference source
(b) comparator amplifier
(c) control device and overload protection
(d) All of the above
113. The specification sheet for the 7812 fixed positive voltage regulator shows that the output voltage could be as low as ________ or as high as ________.
(a) 11.5 V, 12.5 V
(b) 11.2 V, 12.2 V
(c) 11 V, 13 V
(d) 8 V, 15 V
114. The series 7900 ICs are ________.
(a) positive voltage regulators
(b) negative voltage regulators
(c) both positive and negative voltage regulators
(d) adjustable-set voltage regulators
115. The output resulting from a rectifier is a(n) ________.
(a) ac voltage
(b) pure dc voltage
(c) pulsating dc voltage
(d) None of the above
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