Bissoy.com
Doctors Medicines MCQs Q&A

Consider the following devices: 1. SCR 2. GTO 3. BJT 4. MOSFET 5. IGBT Which of these devices belong to the family of thyristors?

Consider the following devices: 1. SCR 2. GTO 3. BJT 4. MOSFET 5. IGBT Which of these devices belong to the family of thyristors? Correct Answer 1 and 2 only

The P-N-P-N devices with zero, one or two gates constitute the basic thyristor. But with the advancement in technology thyristor family includes other similar multilayer devices also.

Devices in Thyristor family:

The following symbols represent DIAC, SCR, TRIAC, and GTO respectively.

Additional Information

  • BJT, MOSFET, and IGBT belong to the transistor family.
  • A bipolar junction transistor (bipolar transistor or BJT) is a type of transistor that uses both electrons and holes as charge carriers; BJTs can be used as amplifiers or switches.
  • Insulated Gate Bipolar Transistor (IGBT) is a three-terminal power semiconductor device primarily used as an electronic switch.

Related Questions

Choose the correct statement(s) i) The gate circuit impedance of MOSFET is higher than that of a BJT ii) The gate circuit impedance of MOSFET is lower than that of a BJT iii) The MOSFET has higher switching losses than that of a BJT iv) The MOSFET has lower switching losses than that of a BJT
Consider the following statements. 1. BJT is a current controlled device whereas IGBT is a voltage-controlled device. 2. BJT and IGBT have low input impedance whereas PMOSFET has higher input impedance. 3. IGBTs are available at higher voltage ratings than PMOSFETs because of increment in ON state voltage drop is less in IGBT. 4. IGBT and PMOSFETs have different substrate structures. The correct statements are
Consider the following statements with regard to a GTO: 1. The turn-off gain of the GTO is large. 2. Large negative gate current pulses are required to turn off the GTO. 3. GTO has a large reverse blocking capability. Which of the above statements is/are correct?
The Transfer characteristic of the different types of MOSFETs is shown below, where ID is drain current and VGS is the Gate-Source voltage, the correct combination of MOSFET w.r.t to transfer characteristics is: Types of MOSFET (P) P – Channel Enhancement MOSFET (Q) P – Channel Depletion MOSFET (R) N – Channel Enhancement MOSFET (S) N – Channel Depletion MOSFET
Consider the following statements: 1. In a silicon controlled rectifier (SCR), if the cathode gate is reverse-biased, then the SCR cannot fire at all. 2. The turn-on time of an SCR increases with temperature. 3. After an SCR is turned on, it can be made to turn off again by reverse biasing the gate. 4. Gate recovery time is the minimum time that the anode voltage must be maintained below holding voltage VH to turn off the SCR. Which of these statements are correct?
The question below consists of a set of labelled sentences in which first and the last sentence is given. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph. S1- Better standard of living for the family is one of the advantages of women/female education. P- An educated mother will earn as good as the father of the family and will look after the financial needs of her family in a much better way.  Q- It doesn’t take a mathematician to conclude that a family relying on double wages is more content and happy than a family which relies on the income of a single parent. R- Women are more concerned about the health of their family than men and have a great sense of hygiene too.  S- Two incomes under the same roof will improve the quality of living and also ensure better education and facilities to the children, not to mention that a happy family will ultimately lead to a happy society. S6- Even working women are constantly concerned about their family’s health and don’t compromise with it at any cost.
The turn-off times of the devices in the increasing order is ___________ I. MOSFET II. BJT III. IGBT IV. Thyristor
The average age of the family of five members is 42 years. The oldest family member of the family died and a new member of age 20 years joined them now the average age of family is 36 years. Another family member who was 6 years younger than the oldest member of family left. Find the new average age of the family.
The average age of a family having three members is 40 years. The smallest member of the family is 18 years old. The difference between the age of the oldest family member and the age of the second oldest family member is 6 more than the difference between the age of the second oldest member and age of youngest member of the family. Quantity I: 25 years hence, what will be the average of the age of smallest member and that of oldest member of the family? Quantity II: What is the age of the oldest member of the family?   
A, B, C, D and E belong to five different cities P, Q, R, S and T (not necessarily in that order). Each one of them comes from a different city. Further it is given that: 1. B and C do not belong to Q. 2. B and E do not belong to P and R. 3. A and C do not belong to R, S, and T. 4. D and E do not belong to Q and T. Which one of the following statements is not correct?