This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 12 Electricity – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 12 Electricity Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following gases are filled in electric bulbs? A) Helium and Neon. B) Neon and Argon. C) Argon and Hydrogen. D) Argon and Nitrogen. Show Answer Correct Answer: D) Argon and Nitrogen. 2. What is Potential Difference? A) Difference of Electric Pressure. B) Difference of Ohm. C) Difference of Resistor. D) Difference of Electric Current. Show Answer Correct Answer: A) Difference of Electric Pressure. 3. If the potential difference across the ends of a conductor is doubled, the current flowing through it, ..... A) Remain same. B) Is zero. C) Gets half. D) Gets doubled. Show Answer Correct Answer: D) Gets doubled. 4. Insulated wire with red colour coding is A) Live wire. B) Neutral wire. C) Ground wire. D) Fuse wire. Show Answer Correct Answer: A) Live wire. 5. A device that controls the continuity of electric current in the power circuit A) Electric cell. B) Electric bulb. C) Switch or plug ki. D) Amit. Show Answer Correct Answer: A) Electric cell. 6. What is formula of Electric current? A) $I=\frac{Q}{T}$. B) $ V = go $. C) $I2=\sqrt[2]{\Delta}$. D) $Q=\frac{I}{T}$. Show Answer Correct Answer: A) $I=\frac{Q}{T}$. 7. The continuous flow of electric charges through a material is called ..... A) Electric Field. B) Electric Force. C) Electric Current. D) Electric Circuit. Show Answer Correct Answer: C) Electric Current. 8. In a series circuit, the total resistance is: A) The sum of individual resistances. B) The product of individual resistances. C) Equal to the smallest resistance. D) Equal to the largest resistance. Show Answer Correct Answer: A) The sum of individual resistances. 9. The property of a metal to resist the flow of charges is called A) Current, I. B) Potential difference, V. C) Resistance, R. D) None of the above. Show Answer Correct Answer: C) Resistance, R. 10. The unit of potential difference A) Watt. B) Volt. C) Faraday. D) Ampere. Show Answer Correct Answer: B) Volt. 11. Which of the following statements are correct about resistance?A. Resistance of a conductor is directly proportional to the length.B. Resistance of a conductor is directly proportional to the area of cross-section.C. Resistance of a conductor depends on the nature of the material.D. Resistance of conductor is inversely proportional to the length. A) A, B and D. B) A and C. C) A and B. D) A and D. Show Answer Correct Answer: B) A and C. 12. An alloy of nickel and chromium is used as the heating element. Because A) It has high resistivity. B) It has a high melting point. C) It is not easily oxidized. D) All the above. Show Answer Correct Answer: D) All the above. 13. Cathode A) Money. B) Loan. C) Money loan. D) All of the above. Show Answer Correct Answer: B) Loan. 14. In every resistance, the current amount of current in connection with the resistance ..... A) Remains alike. B) Is more. C) Decreases. D) Is divided. Show Answer Correct Answer: A) Remains alike. 15. What resistance is needed to cause a 50A current flow because of a 500V battery? A) 10th. B) 5th. C) 2500. D) 550. Show Answer Correct Answer: A) 10th. 16. Coulomb is the SI unit of: A) Charge. B) Current. C) Resistance. D) Potential difference. Show Answer Correct Answer: A) Charge. 17. Electricity is the flow of ..... A) Protons. B) Neutrons. C) Electrons. D) None of the above. Show Answer Correct Answer: C) Electrons. 18. Which of the following statements is correct about electrical insulators? A) They do not contain any atoms. B) Their protons are not allowed to move about freely. C) The electrons are not able to move about freely. D) They are good at conducting heat only. Show Answer Correct Answer: C) The electrons are not able to move about freely. 19. You are given 'n' number of $100\Omega$ $10\Omega$ A) 1. B) 10. C) 20. D) 30. Show Answer Correct Answer: B) 10. 20. Assertion:LED bulbs are far better than incandescent bulbs.Reason:LED bulbs consume less power than incandescent bulbs. A) If both the assertion and the reason are true and the reason is the correct explanation of the assertion. B) If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion. C) If the assertion is true, but the reason is false. D) If the assertion is false, but the reason is true. Show Answer Correct Answer: A) If both the assertion and the reason are true and the reason is the correct explanation of the assertion. 21. What is the lowest resistance substance A) Iron. B) Copper. C) Chromium. D) Silver. Show Answer Correct Answer: D) Silver. 22. Electric current is measured by A) Resistance. B) Impedance. C) Ammeter. D) Voltmeter. Show Answer Correct Answer: C) Ammeter. 23. The rheostat is used in the circuit to A) Increase the magnitude of the current. B) Decrease the magnitude of the current. C) Increase or decrease the magnitude of current. D) None of the above. Show Answer Correct Answer: C) Increase or decrease the magnitude of current. 24. ..... stops the flow of electricity. A) A conductor. B) An insulator. C) A magnet. D) None of the above. Show Answer Correct Answer: B) An insulator. 25. What is the unit of the electrical charge A) Empeare. B) Colombo. C) Volt. D) Jolly. Show Answer Correct Answer: B) Colombo. ← PreviousNext →Related QuizzesClass 10 Science Chapter 12 Electricity Quiz 1Class 10 Science Chapter 12 Electricity Quiz 2Class 10 Science Chapter 12 Electricity Quiz 3Class 10 Science Chapter 12 Electricity Quiz 4Class 10 Science Chapter 12 Electricity Quiz 5Class 10 Science Chapter 12 Electricity Quiz 6Class 10 Science Chapter 12 Electricity Quiz 8Class 10 Science Chapter 12 Electricity Quiz 9Class 10 Science Chapter 12 Electricity Quiz 10Class 10 Science Chapter 12 Electricity Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books