This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 3 Current Electricity – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Graphs consists of dependent and independent variables A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. A material where electricity does flow easily A) Insulator. B) Conductor. C) Filament. D) Circuit. Show Answer Correct Answer: B) Conductor. 3. Kilowatt hour is the commercial unit of ..... A) Electric power. B) Electrical energy. C) Time. D) None of the above. Show Answer Correct Answer: B) Electrical energy. 4. What is the amount of charge that passes a point in a wire per unit of time? A) Resistance. B) Current. C) Power. D) Voltage. Show Answer Correct Answer: B) Current. 5. By increasing the temperature, the specific resistance of a conductor and a semiconductor: A) Increases for both. B) Decreases for both. C) Increases, decreases respectively. D) Decrease, increases respectively. Show Answer Correct Answer: C) Increases, decreases respectively. 6. Copper is used in wiring because it is an excellent ..... of electricity. A) Circuit breaker. B) Conductor. C) Insulator. D) Fuse. Show Answer Correct Answer: B) Conductor. 7. Like poles of a magnet A) Attract. B) Repel. C) All the above. D) None of the above. Show Answer Correct Answer: B) Repel. 8. A wire carrying a current is placed in a magnetic field. What will happen to the wire? A) It will experience a force perpendicular to both the current and the magnetic field. B) It will experience a force parallel to the current. C) It will not experience any force. D) It will experience a force parallel to the magnetic field. Show Answer Correct Answer: A) It will experience a force perpendicular to both the current and the magnetic field. 9. In a parallel circuit, if one connection is broken, all of the connections stop working. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. In a series circuit with three resistors, if the total resistance is 12 ohms and two of the resistors are 3 ohms each, what is the resistance of the third resistor? A) 3 ohms. B) 4 ohms. C) 6 ohms. D) 9 ohms. Show Answer Correct Answer: B) 4 ohms. 11. Negatively charged electrons flow toward positively charged protons. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. What is the symbol used for current in equations? A) V. B) R. C) C. D) I. Show Answer Correct Answer: D) I. 13. Used to open or close a circuit A) Insulator. B) Conductor. C) Switch. D) Terminal. Show Answer Correct Answer: C) Switch. 14. An electric iron has a rating of 750 W, 220 V. Calculate current passing through it. [Use P = IV] A) 5 A. B) 6 A. C) 3.4 A. D) 7 A. Show Answer Correct Answer: C) 3.4 A. 15. In Joule's heating law, when R and t areconstant, if the H is taken along the yaxis and I$^{2}$ along the x axis, the graph is A) Straight line. B) Parabola. C) Circle. D) Ellipse. Show Answer Correct Answer: A) Straight line. 16. What are the two conditions for electric current? A) An energy source and an open circuit. B) A ground and a closed circuit. C) A ground and an open circuit. D) An energy source and a closed circuit. Show Answer Correct Answer: D) An energy source and a closed circuit. 17. What is the term for the reciprocal of resistance? A) Conductance. B) Resistivity. C) Voltage. D) Current. Show Answer Correct Answer: A) Conductance. 18. Which description best identifies the cause of static electricity? A) A lack of any neutral charges. B) A lack of any positive or negative charges. C) An imbalance of positive and negative charges. D) An exact balance of positive, negative, and neutral charges. Show Answer Correct Answer: C) An imbalance of positive and negative charges. 19. An electrical build up caused by rubbing us known as ..... A) Volts. B) Discharge. C) Lightning. D) Friction. E) Attraction. Show Answer Correct Answer: D) Friction. 20. Clothes sticking together in the dryer is an example of A) Static Electricity. B) Current Electricity. C) All the above. D) None of the above. Show Answer Correct Answer: A) Static Electricity. 21. The carbon resistor has three orange bands. The maximum value of resistance offered by the resistor will be ..... kilo-ohm. A) 49.6. B) 39.6. C) 33. D) 26.4. Show Answer Correct Answer: C) 33. 22. The motion of charged particles create electric current. The motion of which particles create current in a conductor, in gases and in electrolyte . A) Conductor-electrons gases-moleculeselectrolytes-ions. B) Conductor-molecules gases-ionselectrolytes-electrons. C) All the above. D) None of the above. Show Answer Correct Answer: A) Conductor-electrons gases-moleculeselectrolytes-ions. 23. What is magnetism? A) An invisible force produced by certain metals. B) A visible force produced by certain metals. C) An invisible force produced by all metals. D) A visible force produced by mixtures of metals. Show Answer Correct Answer: A) An invisible force produced by certain metals. 24. Which of the following is a characteristic of current electricity? A) It is stored in batteries. B) It is a flow of electric charge through a conductor. C) It occurs naturally in the atmosphere. D) It is caused by friction. Show Answer Correct Answer: B) It is a flow of electric charge through a conductor. 25. Which of the following is a characteristic of static electricity? A) It involves a continuous flow of electrons. B) It is generated by friction between two objects. C) It requires a closed circuit to flow. D) It is used to power household appliances. Show Answer Correct Answer: B) It is generated by friction between two objects. Next →Related QuizzesClass 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 10Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books