This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 3 Current Electricity – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A 10-ohm resistor has a constant current. If 1200 C of charge flow through it in 4 minutes what is the value of the current? A) 3.0 A. B) 15 A. C) 5.0 A. D) 20 A. Show Answer Correct Answer: B) 15 A. 2. How does increasing the voltage affect the current in a circuit with constant resistance? A) Increasing the voltage increases the current in a circuit with constant resistance. B) Increasing the voltage has no effect on the current in a circuit with constant resistance. C) Increasing the voltage decreases the current in a circuit with constant resistance. D) Increasing the voltage causes the resistance to decrease, affecting the current. Show Answer Correct Answer: A) Increasing the voltage increases the current in a circuit with constant resistance. 3. All circuits need to have a source of power and a load. What is a good example of a load? A) Copper wire. B) Battery. C) Switch. D) Toaster. Show Answer Correct Answer: D) Toaster. 4. What is the effect of the nature of the conductor on its resistance? A) Depends on material. B) Inversely proportional. C) Depends on temperature. D) No effect. Show Answer Correct Answer: A) Depends on material. 5. The reason why some objects become charged is that they gain or lose A) Electrons. B) Protons. C) Neutrons. D) Atoms. Show Answer Correct Answer: A) Electrons. 6. What does the Greek letter $\Omega$, (i.e. Omega) represent? A) Amps. B) Volts. C) Watts. D) Ohms. Show Answer Correct Answer: D) Ohms. 7. An electric ..... is a path electric current travels on. A) Switch. B) Charge. C) Insulator. D) Circuit. Show Answer Correct Answer: D) Circuit. 8. Resistor 1 has twice the resistance of resistor 2. They are connected in parallel to a battery.The ratio of the thermal energy generation rate in 1 to that in 2 is: A) 1:4. B) 1:2. C) 1:1. D) 2:1. Show Answer Correct Answer: B) 1:2. 9. The path through which a current flows A) Current. B) Charge. C) Conductor. D) Circuit. Show Answer Correct Answer: D) Circuit. 10. A series circuit has ..... path(s) that the electric current can take. A) One. B) Two. C) Three. D) Four. Show Answer Correct Answer: A) One. 11. Three electric cells of potential difference 1.5 V each have been connected as a battery. The potential difference of the battery will be ..... V A) 3.5. B) 4.5. C) 6.5. D) 4.00. Show Answer Correct Answer: B) 4.5. 12. The electrons in an insulator are bound loosely to their atoms and flow easily. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 13. Which best describes a simple series circuit? A) Electricity flows along one pathway. B) The flow of electricity comes from the switch. C) Electricity flows along many pathways. D) The flow of electricity comes from the light bulb. Show Answer Correct Answer: A) Electricity flows along one pathway. 14. Point to be kept in mind for verification of Ohm's Law is: A) Ammeter and voltmeter should be connected in series. B) Ammeter should be connected in series and voltmeter in parallel. C) Ammeter should be connected in parallel and voltmeter in series. D) Ammeter and voltmeter should be connected in parallel. Show Answer Correct Answer: B) Ammeter should be connected in series and voltmeter in parallel. 15. Cells are connected in: ..... A) Parallel. B) Series. C) No idea, sorry. D) None of the above. Show Answer Correct Answer: A) Parallel. 16. An electromagnet is ..... A) A permanent magnet. B) Cannot be turned off. C) A temporary magnet. D) A short circuit. Show Answer Correct Answer: C) A temporary magnet. 17. A tool that measures the electric current that passing a specific point in an electric circuit is ..... A) Voltmeter. B) Ammeter. C) Switch. D) Load. Show Answer Correct Answer: B) Ammeter. 18. Flow of one Coulumb of charge per second is A) 1 W. B) 1A. C) 1 V. D) 1 Ohm. Show Answer Correct Answer: B) 1A. 19. In a homemade electromagnet, what must you do to increase the number of paper clips their electromagnet picks up? A) Make the wire longer. B) Remove the nail from the center of the wire. C) Increase the number of loops of wire around the nail. D) Spread the loops of wire apart on the nail so they do not touch. Show Answer Correct Answer: C) Increase the number of loops of wire around the nail. 20. What is the source of D.C.? A) Mains. B) Generator. C) Dry Cell. D) None of the above. Show Answer Correct Answer: C) Dry Cell. 21. Fill in the blank: ..... Electricity occurs when a charge on a substance stays in the same place. A) Current. B) Static. C) Discharge. D) Attract. E) Friction. Show Answer Correct Answer: B) Static. 22. If the lights are off, the circuit is A) Closed. B) Open. C) All the above. D) None of the above. Show Answer Correct Answer: B) Open. 23. What type of electricity is produced by and electric eel? A) Static. B) Current. C) Ground. D) Amazing. Show Answer Correct Answer: A) Static. 24. WHICH DEVICE IS USED FOR MEASURING SMALL CURRENT? A) VOLTMETER. B) DOUBLE AMMETER \{SPECIFIC\}. C) GALVANOMETER. D) AMMETER. Show Answer Correct Answer: C) GALVANOMETER. 25. Which of the following phenomena is an example of current electricity? A) Lightning. B) A shock from a doorknob. C) Electricity flowing through a wire. D) Static cling. Show Answer Correct Answer: C) Electricity flowing through a wire. ← 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