36. The zener current will be minimum when …………
(a) load current is maximum
(b) load current is minimum
(c) load current is zero
(d) none of the above
37. In a full-wave rectifier, the dc voltage level is ________ the ripple voltage level.
(a) smaller than
(b) the same as
(c) larger than
(d) None of the above
38. A type of regulator circuit that is quite popular for its efficient transfer of power to the load is the ________.
(a) current-limiting voltage regulator
(b) switching regulator
(c) foldback limiting regulator
(d) op-amp series regulator
39. Calculate the ripple voltage of a full-wave rectifier with a 75 μF filter capacitor connected to a load drawing 40 mA.
(a) 1.20 V
(b) 1.28 V
(c) 1.32 V
(d) 1.41 V
40. In which period is the capacitor filter discharged through the load in a full-wave rectifier?
(a) The time during the positive cycle
(b) The time during which the diodes are not conducting
(c) The time during which the diode(s) is (are) conducting
(d) The time during the negative cycle
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