66. A voltage regulator with a no-load output dc voltage of 12 V is connected to a load with a resistance of 10 Ω. If the load resistance decreases to 7.5 Ω, the load voltage will decrease to 10.9 V. The load current will be ________, and the percent load regulation is ________.
(a) 1.45 A, 90.8%
(b) 1.45 A, 10.09%
(c) 1.2 A, 90.8%
(d) 1.2 A, 10.09%
67. Nota
68. Switching regulator efficiencies can be greater than ________ percent.
(a) 60
(b) 70
(c) 80
(d) 90
69. How many terminals does a 7800 series IC regulator have?
(a) 2
(b) 3
(c) 4
(d) none of the above
70. In a series linear regulator, the control element is a(n) ________ in series with the load.
(a) inductor
(b) capacitor
(c) transistor
(d) none of these
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5555555555 66. A voltage regulator with a no-load output dc voltage of 12 V is connected to a load with a resistance of 10 Ω. If the load resistance decreases to 7.5 Ω, the load voltage will decrease to 10.9 V. The load current will be ________, and the percent load regulation is ________. (a) 1.45 A, 90.8% (b) 1.45 A, 10.09% (c) 1.2 A, 90.8% (d) 1.2 A, 10.09%- 5555555555 65. A voltage regulator has a no-load output of 18 V and a full-load output of 17.3 V. The percent load regulation is ________. (a) 0.25%. (b) 96.1%. (c) 4.05%. (d) 1.04%.
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- 5555555555 47. Voltage regulators keep a constant ________ output voltage when the input or load varies within limits. (a) dc (b) ac (c) ripple (d) none of these
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