This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 3 Current Electricity – Quiz 43 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 43 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. S.I unit of P.D is A) Ampere (A). B) Volt (V). C) $\Omega$. D) J. Show Answer Correct Answer: B) Volt (V). 2. What instrument is used to measure the electric current that flows through a wire? A) Voltmeter. B) Galvanometer. C) Ammeter. D) Electric meter. Show Answer Correct Answer: C) Ammeter. 3. The rate of flow of electrons in a conductor is referred to as ..... A) Series circuit. B) Battery voltage. C) Electric current. D) Conduction electrons. Show Answer Correct Answer: C) Electric current. 4. This force is the attractive and repulsive force between two poles. A) Electric. B) Magnetic. C) Electromagnetic. D) None of the above. Show Answer Correct Answer: B) Magnetic. 5. Electric current is the ..... of flow of ..... A) Amount, proton. B) Rate, charges. C) Rate, electron. D) None of the above. Show Answer Correct Answer: B) Rate, charges. 6. Insulator or Conductor?STYROFOAM A) Insulator. B) Conductor. C) All the above. D) None of the above. Show Answer Correct Answer: A) Insulator. 7. Rubber A) Conductor. B) Insulator. C) All the above. D) None of the above. Show Answer Correct Answer: B) Insulator. 8. How does a voltmeter meter is added in the circuit? A) Series. B) Parallel. C) All the above. D) None of the above. Show Answer Correct Answer: B) Parallel. 9. What type of electricity caused by a steady flow of electrons? A) Static. B) Current. C) Ground. D) Amazing. Show Answer Correct Answer: B) Current. 10. What is a property of matter that causes objects to attract or repel each other? A) Compass. B) Electric charge. C) Electric circuit. D) Electric field. Show Answer Correct Answer: B) Electric charge. 11. Opposite charges are attracted to one another. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. What is the main characteristic of current electricity? A) A steady flow of electrons along a circuit. B) A random movement of protons. C) A stationary charge. D) None of the above. Show Answer Correct Answer: A) A steady flow of electrons along a circuit. 13. Static electricity is a form of energy when the charges are the rest. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 14. In a simple circuit, what happens to the current if the resistance increases while the voltage remains constant? A) The current increases. B) The current decreases. C) The current remains the same. D) The current becomes zero. Show Answer Correct Answer: B) The current decreases. 15. What is the relationship between charge, current, and time? A) Charge = Current-Time. B) Charge = Current * Time. C) Charge = Current / Time. D) Charge = Current + Time. Show Answer Correct Answer: B) Charge = Current * Time. 16. Which of the following has negative temperature coefficient of resistance A) Copper. B) Aluminium. C) Germanium. D) Iron. Show Answer Correct Answer: C) Germanium. 17. What metal is the best conductor of electrical current? A) Copper. B) Silver. C) Steel. D) None of the above. Show Answer Correct Answer: B) Silver. 18. A point charge of +3.0 X 10$^{-7}$ coulomb is placed 2.0 X 10$^{-2}$ meter from a second point charge of +4.0 X 10$^{-7}$ coulomb. What is the magnitude of the electrostatic force on the charges? A) 6.0 X 10$^{-12}$ N. B) 3.0 X 10$^{-10}$ N. C) 5.4 X 10$^{-2}$ N. D) 2.7 N. Show Answer Correct Answer: D) 2.7 N. 19. True or False:In static electricity, charges build up on an object, but they do not flow continuously. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. Why are humans conductors? A) Humans are made of mostly water. B) Humans have a ton of metal in their bodies. C) Humans conduct the railroad. D) Humans are great at the electric slide. Show Answer Correct Answer: A) Humans are made of mostly water. 21. Unit of electric current A) Volt. B) Ohm. C) Ampere. D) Joule. Show Answer Correct Answer: C) Ampere. 22. Ohm's law is true for A) Metallic conductors at low temperature. B) Metallic conductors at high temperature. C) For electrolytes, when current passes through them. D) For diode when current flows. Show Answer Correct Answer: A) Metallic conductors at low temperature. 23. The gold color band refers to ..... tolerance. A) + /-20%. B) + /-10%. C) + /-5%. D) Zero. Show Answer Correct Answer: C) + /-5%. 24. SI unit of voltage is A) Ampere. B) Metre. C) Ohm. D) Volt. Show Answer Correct Answer: D) Volt. 25. What is an electric cell? A) A device that converts mechanical energy into electrical energy. B) A device that turns stored chemical energy into electrical energy. C) A device that devours electrical energy. D) A device that converts static electricity into mechanical energy. Show Answer Correct Answer: B) A device that turns stored chemical energy into electrical energy. ← PreviousNext →Related QuizzesClass 12 Physics (Part I) Chapter 3 Current Electricity Quiz 1Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 2Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 3Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 4Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 5Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 6Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 7Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 8Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 9Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books