Conductors and Insulators Quiz - CBSE Class 6 Science

Free practice quiz: Conductors and Insulators (CBSE Class 6 Science). 18 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 6 Science practice quiz has 18 multiple-choice questions on Conductors and Insulators, and 18 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Which of the following is a good conductor of electricity?

   1. Wood
   2. Rubber
   3. Copper
   4. Plastic
   Show answer

   Answer: C. Copper

   Copper is a good conductor of electricity as it allows electric current to flow easily through it.

2. Which of the following is not a property of a conductor?

   1. Insulates electricity
   2. Allows electricity to flow
   3. Has low resistance
   4. Transfers heat
   Show answer

   Answer: A. Insulates electricity

   Conductors allow electricity to flow, whereas not being a conductor means it insulates electricity.

3. Which of the following pairs are insulators?

   1. Copper and Steel
   2. Glass and Plastic
   3. Gold and Silver
   4. Iron and Aluminum
   Show answer

   Answer: B. Glass and Plastic

   Glass and Plastic are both insulators, while the other pairs listed include conductive materials.

4. A wire has a resistance of 10 ohms. If the voltage across it is 20 volts, what is the current flowing through the wire?

   1. 2 Amperes
   2. 0.5 Amperes
   3. 10 Amperes
   4. 5 Amperes
   Show answer

   Answer: A. 2 Amperes

   Using Ohm's law, V = IR, we can rearrange to solve for I = V / R. So, I = 20V / 10Ω = 2A.

5. Which insulator is commonly used in overhead power lines?

   1. Glass
   2. Rubber
   3. Plastic
   4. Paper
   Show answer

   Answer: A. Glass

   Glass insulators are used in overhead power lines because they can withstand high voltages and weather conditions.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which material is most likely an insulator?
2. What is the main function of conductors?
3. Which type of material is used in electrical wires?
4. What happens when an insulator is connected to a circuit?
5. Why is rubber used to coat wires?
6. If you had a box of circuit components, which one would definitely be a conductor?
7. What is the effect of temperature on conductors?
8. Why do we use aluminum in power transmission lines?
9. If a person touches a live wire, what can happen?
10. A circuit has a total resistance of 15 ohms, and the current flowing through it is 3 amperes. What is the voltage across the circuit?
11. Why do some metals get hot when current passes through them?
12. If a circuit is shorted, what happens?
13. A student measures the resistance of a wire to be 25 ohms and connects it to a power supply of 50 volts. What is the current flowing through the wire?

More quizzes

• Sources of Electric Current▶ Play
• Understanding Electric Current▶ Play

Browse all Current Electricity quizzes

More to play