This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Diode Circuits”.
(Q.1-Q.4) For the given circuits and input waveform determine the output waveform
Explanation: Diode is off when Vi < 5 and for Vi > 5, Vo = 5V.
Explanation: Diode is off when Vi + 2 > 0.
Explanation: For V1 < 4 the diode is on otherwise its off.
Explanation: During +ve half cycle when Vi < 8 both the diodes are off. For V1 > 8, D1 is on. Similarly for the negative half cycle.
Explanation: At regulated poer supply, Is = 30-9/15k or 1.4 mA. The load current will remain less than this current.
6. For the circuit shown diode cutting voltage is Vin = 0. The ripple voltage is to be no more than vrip = 4 V. The minimum load resistance, that can be connected to the output is (in kilo ohm)
7. The circuit inside the box in fig. P3.1.31. contains only resistor and diodes. The terminal voltage vo is
connected to some point in the circuit inside the box. The largest and smallest possible value of vo most nearly to is respectively
a) 15 V, 6 V
b) 24 V, 0 V
c) 24 V, 6 V
d) 15 V, 9 V
Explanation: The output voltage cannot exceed the positive power supply voltage and cannot be lower than the negative power supply voltage.
Sanfoundry Global Education & Learning Series – Electronic Devices and Circuits.
To practice all areas of Electronic Devices and Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers.