Power Electronics -Thyrstors

This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on Diode Circuits-3.

1. For the circuit shown in the figure below, consider the diode as an ideal diode & rms value of source voltage as Vs. power-electronics-mcqs-diode-circuits-3-q1 The output voltage waveform at R will have a) zero value in the positive half cycle and a peak value of 1.414Vs in the negative half cycle b) sine-wave nature with a peak value 1.414Vs c) zero value in the negative half cycle and a peak value of 1.414Vs in the positive half cycle d) sine-wave nature with a peak value Vs

2. For the circuit shown in the figure below, Vs is the ac voltage source with peak value Vm. The waveform of the load voltage at the resistor will have power-electronics-mcqs-diode-circuits-3-q2 a) zero value in the positive half cycle and a peak value of (Vm) in the negative half cycle b) zero value in the negative half cycle and a peak value of (Vm-V1) in the positive half cycle c) zero value in the positive half cycle and a peak value of (Vm+V1) in the negative half cycle d) zero value in the positive half cycle and a peak value of (Vm-V1) in the negative half

3. For the circuit shown below, power-electronics-mcqs-diode-circuits-3-q3 Vs=230V, Voltage drop across the diode (Vd) = 2V The peak value of voltage at R in the positive and the negative half cycles are ___ & ___ respectively. a) 323V,0V b) 0V, 323V c) 327V, 0V d) 0V, 327V

4. For the circuit shown in the figure below, V9 is the AC voltage source with peak value Vm. The waveform of the load voltage at the resistor has a power-electronics-mcqs-diode-circuits-3-q4 a) peak value of (Vm+V1) in the negative half cycle b) peak value of (Vm-V1) in the positive half cycle c) peak value of (Vm+V1) in the positive half cycle d) peak value of (Vm-V1) in the negative half cycle

5. The circuit shown below has the following parameters: power-electronics-mcqs-diode-circuits-3-q5 V1 = 8 Volts V2 = 6 Volts Vs = 10V/?2 (rms) Voltage drop across D1 & D2 = 0.7 Volts At the load (R), the peak value in the positive half cycle will be a) 8.7 V b) 6.7 V c) 8 V d) 10V/?2

6. The circuit shown below has the following parameters: power-electronics-mcqs-diode-circuits-3-q5 Voltage drop across D1 & D2 = 0.7 Volts V1 = 8 Volts V2 = 6 Volts Vs = 10V/?2 (RMS) At the load (R), the peak value in the negative half cycle is a) 8.7 V b) 6.7 V c) 8 V d) 10V/?2

7. Consider the diode to be an ideal one and Vo = Vr + Vdc during positive half cycle. Thus, during the negative half cycle power-electronics-mcqs-diode-circuits-3-q7 a) Vo = Vr b) Vo = 0 c) Vo = Vdc+Vr d) Vo = Vdc

8. When a diode is connected in series with an AC source & R load, the conduction time per cycle is a) 0 b) 2? c) ? d) ?/2

9. When diode is connected in series to an AC source & RL load, the conduction time for the diode a) is always less than ? b) is 0 c) is ? d) can be greater than ?

10. For the circuit shown below, power-electronics-mcqs-diode-circuits-3-q10 Vdc = 50 V Cut-in voltage for D1 = 0.2 V Cut-in voltage for D2 = 0.6 V R = 5K? Current through D1 & D2 would be, a) 5mA, 5mA b) 10mA, 0 c) 0, 10mA d) 9.98mA, 9.94mA

Our Service Charter

1. Professional & Expert Writers: Homework Free only hires the best. Our writers are specially selected and recruited, after which they undergo further training to perfect their skills for specialization purposes. Moreover, our writers are holders of masters and Ph.D. degrees. They have impressive academic records, besides being native English speakers.

2. Top Quality Papers: Our customers are always guaranteed of papers that exceed their expectations. All our writers have +5 years of experience. This implies that all papers are written by individuals who are experts in their fields. In addition, the quality team reviews all the papers before sending them to the customers.

3. Plagiarism-Free Papers: All papers provided by Homework Free are written from scratch. Appropriate referencing and citation of key information are followed. Plagiarism checkers are used by the Quality assurance team and our editors just to double-check that there are no instances of plagiarism.

4. Timely Delivery: Time wasted is equivalent to a failed dedication and commitment. Homework Free is known for timely delivery of any pending customer orders. Customers are well informed of the progress of their papers to ensure they keep track of what the writer is providing before the final draft is sent for grading.

5. Affordable Prices: Our prices are fairly structured to fit in all groups. Any customer willing to place their assignments with us can do so at very affordable prices. In addition, our customers enjoy regular discounts and bonuses.

6. 24/7 Customer Support: At Homework Free, we have put in place a team of experts who answer to all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.