Bissoy.com
Doctors Medicines MCQs Q&A

Related Questions

Each of the questions below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. Find the percentage of impurity in the mixture. I. A discount vendor professes to sell his at the cost price and mixes with impurity and thereby gain 25%. II. If in 45 kg of mixture, 5/2 times quantity of impurity is equal to 150% of 2/3 of the quantity of whole mixture. III. The ratio of quantity of pure wheat in the mixture to the total quantity of the mixture in 3 : 5. (Mixture is made of pure wheat and impurity)
Which of the following components is used to create an N-type semiconductor? a. Trivalent impurity b. Pentavalent impurity c. Intrinsic semiconductor d. Extrinsic semiconductor
Which of the following statements is/are correct? 1) Conductor contains a large number of electrons in the conduction band at room temperature. No energy gaps exist and the valence and conduction bands overlap. 2) A semiconductor is a material in which the energy gap is so large that practically no electron can be given enough energy to jump this gap. 3) An insulator is a solid with an energy gap small enough for electrons to cross rather easily from the valence band to conduction band.
A trivalent impurity has valence electrons
Addition of pentavalent impurity to a semiconductor creates many
When a pentavalent impurity is added to a pure semiconductor, it becomes
When a pentavalent impurity is mixed into the semiconductor:
What type of material is obtained when an intrinsic semiconductor is doped with pentavalent impurity?
Anything that influences the valence electrons will affect the chemistry of the element. Which one of the following factors does not affect the valence shell?
The number of valence electrons in donor impurity are