MCQs on Conductors and insulators
Q1: Which of the following is the most conductive element?
Q2: A material that has zero resistance is called
Q3: Why is copper a preferred choice in making electrical wires?
- Copper is a good conductor of electricity
- Poor conductors of electricity
Answer:(a) Copper is a good conductor of electricity
Q4: Which among the following is not an insulator?
Q5: What is the inverse of resistance called?
Q6: The energy gap is maximum in
Q7: Conductors are materials that allow
- Allow the flow of heat
- Does not allow heat to flow
- Allows cold to flow
- Stops cold from passing through
Answer: (a) Allow the flow of heat
Q8: Good conductors have many loosely bound
Q9: The resistance of the conductor is directly proportional to
- Area of cross-section
Answer: (a) Length
Q10: With the increase in temperature the resistance of semiconductors
- Remains constant
- Initially increases and then decreases
Answer: (a) Decreases
Q11: Which of the following is an insulator?