Electrical Engineering Materials Mcqs Start Creating PDF
Electrical Engineering Materials Mcqs, this topic has 100 mcqs, It takes five to ten minutes to complete this free electrical engineering materials mcqs test. You will see 4 or 5 option of each question. You must choose / think only one option and then press on answer key for check right answer. Practice "electrical engineering materials mcqs" MCQs and share with your friends, brothers, sisters.
electrical engineering materials mcqs (Total Quiz: 100)
MCQ: The minority carrier concentration is largely a function of_____________?
- forward biasing voltage
- reverse biasing voltage
- temperature
- the amount of doping
C
MCQ: The current due to electron flow in conduction band is the hole current in valence band?
- equal to
- less than
- greater than
- any of the above
C
MCQ: is an element used in semiconductors whose atoms have three valence electrons?
- An acceptor
- A donor
- Germanium
- Silicon
A
MCQ: The carbon percentage is least in__________________?
- low carbon steel
- wrought iron
- cast iron
- malleable iron
B
MCQ: The conductivity of an extrinsic semiconductor with temperature________________?
- decreases
- increases
- remains constant
C
MCQ: For a hole which of the following statements is incorrect ?
- Holes can exist in certain semiconductors only
- Holes can exist in any material including conductors
- Holes may constitute an electric current
- Holes can be considered as a net positive charge
B
MCQ: For a particular material the Hall coefficient was found to be zero. The material is______________?
- insulator
- metal
- intrinsic semiconductor
- none of the above
B
MCQ: Superconducting metal in super conducting state has relative permeability of________________?
- zero
- one
- negative
- more than one
A
MCQ: Which of the following factors affect resistivity of metals ?
- Age hardening
- Alloying
- Temperature
- Cold work
- All of the above
E
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