7000+ Basic Electronics MCQ Questions and Answers Pdf - 2

Question: 6

A heavily doped semiconductor has

(A) A negative temperature coefficient of resistance

(B) A positive temperature coefficient of resistance

(C) A resistivity which decreases exponentially with temperature

(D) A resistivity which rises almost linearly with temperature

Question: 7

A continuity equation is called as the law of conservation of

(A) Power

(B) Mass

(C) Charge

(D) Energy

Question: 8

Which of the following will serve as a donor impurity in silicon?

(A) Antimony

(B) Germanium

(C) Indium

(D) Boron

Question: 9

In an LC filter, the ripple factor

(A) Has the lowest value

(B) Increase with the load current

(C) Increases with the load resistance

(D) Remains constant with the load current

Question: 10

The covalent bond is formed by

(A) Removing the electron completely

(B) Sharing of variable number of electrons by a variable number of atoms

(C) Sharing of electrons between atoms

(D) Transfer of electrons between atoms