Electronics and Materials Quiz

The reciprocal of resistivity is known as

• Specific resistance

• conductivity

• inductance

• resistance

A P-type semiconductor results when

• A pentavalent impurity is added to an intrinsic semiconductor

• A trivalent impurity is added to an intrinsic semiconductor

• Either a pentavalent or trivalent impurity is added to an intrinsic semiconductor

• None of the above

What are the two main types of Temperature Dependent Resistors?

• PTC and NTC

• LDR and VDR

• CTR and STR

• ZTR and QTR

SI unit of resistivity is……..

• Ω/m

• Ω/m

• Ω-m

• m/Ω

What is the primary function of a Voltage Dependent Resistor (VDR)?

• Amplify signals

• Store electrical energy

• Provide a constant resistance

• Protect against voltage spikes

A room temperature P-type material will have....

• More of electrons

• More of holes

• Equal number of electrons and holes

• none of these

In which application is an LDR commonly used?

• Voltage regulation

• Surge protection

• Light sensing

• Audio amplification

Varistors are typically made from which material?

• Copper

• Silicon

• Zinc oxide

• Aluminum

A doped semiconductor is also known as

• Intrinsic semiconductor

• Extrinsic semiconductor

• Diffused semiconductor

• None of the above

Which of the following elements is known for its strong ferromagnetic properties?

• Aluminum

• Iron

• Copper

• Silicon