This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “MOSFETs-2”. 1. In the output characteristics of a MOSFET with low values of Vds, the value of the on-state resistance is a) Vds/Ig b) Vds/Id c) 0 d) ∞ 2. At turn-on the initial delay or turn on delay is the time … Read more
This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “MOSFETs-1”. 1. The MOSFET combines the areas of _______ & _________ a) field effect & MOS technology b) semiconductor & TTL c) mos technology & CMOS technology d) none of the mentioned 2. Which of the following terminals does not belong to … Read more
This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Power Transistors-2”. 1. For a power transistor, if the forward current gain α = 0.97, then β = ? a) 0.03 b) 2.03 c) 49.24 d) 32.33 2. The power electronics devices have a very high efficiency because a) cooling is very … Read more
This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Power Transistors – 1” 1. Which of the following devices does not belong to the transistor family? a) IGBT b) MOSFET c) GTO d) BJT 2. A power transistor is a a) three layer, three junction device b) three layer, two junction … Read more
This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Types of Power Diodes-2”. 1. Ideally the voltage drop across a conducting diode must be a) ∞ b) 0 c) higher than the forward biased voltage d) equal to the forward biased voltage 2. When reverse breakdown occurs in a diode a) … Read more
This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Types of Power Diodes-1”. 1. Shown below is the diagram of an ideal super diode. When the input voltage Vin is negative, then the output voltage Vout = ? a) Vout/Vin b) Vin c) 0 d) Vin * Rl 2. In order … Read more
This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Power Diode-2”. 1. If V & I are the forward voltage & current respectively, then the power loss across the diode would be a) V/I b) V2 I2 c) I2 V d) VI 2. The power loss in which of the following … Read more
This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Power Diode – 1”. 1. An ideal power diode must have a) low forward current carrying capacity b) large reverse breakdown voltage c) high ohmic junction resistance d) high reverse recovery time 2. To make a signal diode suitable for high current … Read more
This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “The P-N Junction”. 1. The p-region has a greater concentration of __________ as compared to the n-region in a P-N junction. a) holes b) electrons c) both holes & electrons d) phonons 2. A p-type semiconductor material is doped with ____________ impurities … Read more
