Basic Electronics

Majority charge carriers in case of n-type semiconductor are:

• Electrons

• Holes

• Neutrons

• Protons

The process of adding small number of impurity atoms into the crystal lattice in order to enhance the properties of the material is called:

• Introducing

• Doping

• Amplifying

• Annealing

Silicon and Germanium are two widely used semiconductor materials because the energy require to break their bonds are relatively less

• False

• True

In a Diode during reverse biased condition width of potential barrier will be:

• Large

• Small

• Does not depend on bias

Forbidden energy gap in case of semi-conductors will ___ with increase in temperature:

• Remain unaffected

• Increases

• Decreases

Germanium is ____

• Tetravalent element

• Trivalent element

• Divalent element

Rectifier circuit helps to convert which of the following voltages:

• Fixed dc to variable dc

• Fixed ac to variable ac

• dc to ac

• ac to dc

A Semicondcutor device where no impurities are added is termed as:

• Extrinsic Semiconductor

• Intrinsic Semiconductor

Zener doide offers high resistance to flow of electrons when connected in ____ configuration in a circuit

• Fixed biased

• Reverse biased

• Forward biased

In case of P-type semi-conductors conduction at room temperature takes place by means of which of the following:

• Protons

• Holes

• Electrons

• Neutrons