This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 3 Current Electricity – Quiz 26 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 26 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type of materials are needed to create an electromagnet? A) Battery, light bulb, plastic straw. B) Battery, coil of wire, iron core. C) Generator, iron core, switch. D) Switch, source of electricity, compass. Show Answer Correct Answer: B) Battery, coil of wire, iron core. 2. A Charging system producing 14.5 Volts with a current flow of 43.5 Amps, what is the circuit resistance A) 58 Amps. B) 0.33 Amps. C) 13 Amps. D) 1 Amp. Show Answer Correct Answer: B) 0.33 Amps. 3. The algebraic sum of voltages around any closed path in a network is equal to ..... A) Infinity. B) 1. C) 0. D) Negative Polarity. Show Answer Correct Answer: C) 0. 4. Electrical energy is made in ..... A) Power plants. B) Direct current. C) Alternating current. D) None of the above. Show Answer Correct Answer: A) Power plants. 5. The heat produced by 100 W heater in 2 minutes is equal to A) 10.5 kJ. B) 16.3 kJ. C) 12.0 kJ. D) 14.2 kJ. Show Answer Correct Answer: C) 12.0 kJ. 6. Within a circuit, the number of electrons flowing from the battery is ..... the number of electrons returning to the battery. A) More than. B) Less than. C) The same as. D) None of the above. Show Answer Correct Answer: C) The same as. 7. What is the role of a resistor in an electrical circuit? A) To increase the current. B) To decrease the voltage. C) To oppose the flow of current. D) To store electrical energy. Show Answer Correct Answer: C) To oppose the flow of current. 8. Parallel circuits are A) A circuit that has only one path for current to travel. B) Has more than one path for current to travel. C) A circuit that does not allow electricity to travel through it. D) Magnets that cause electric current. Show Answer Correct Answer: B) Has more than one path for current to travel. 9. Which of the following is the best definition of electromagnetism? A) The use of electrical energy to create magnets. B) The use of magnets to generate electric currents. C) The interaction between electrical energy and magnetism. D) The appearance in nature of objects that have both electric and magnetic fields. Show Answer Correct Answer: C) The interaction between electrical energy and magnetism. 10. Cathode is the ..... electrode of a battery A) Positive. B) Negative. C) All the above. D) None of the above. Show Answer Correct Answer: A) Positive. 11. When an electric field is applied across the ends of a conductor the electrons experience this ..... A) Gains kinetic energy due to electric field. B) Loses kinetic energy due to electric field. C) Loses / gains kinetic energy during the collision in the direction of electric field. D) Loses/gains kinetic energy during the collision in the direction opposite to the direction of electric field. Show Answer Correct Answer: C) Loses / gains kinetic energy during the collision in the direction of electric field. 12. What does a transformer do? A) Move electricity from place to place. B) Increase or decrease the voltage of the electricity. C) Change mechanical energy into electrical energy. D) None of the above. Show Answer Correct Answer: B) Increase or decrease the voltage of the electricity. 13. What type of energy is the electrical energy from the battery being converted into in this radio? A) Heat and light. B) Sound and light. C) Sound and heat. D) Potential energy. Show Answer Correct Answer: C) Sound and heat. 14. Which term refers to the flow of electrical charges? A) Conductance. B) Resistance. C) Current. D) Energy. Show Answer Correct Answer: C) Current. 15. Using the law of charges, identify what will happen when a positively charged object becomes neutralized. A) It loses protons. B) It gains protons. C) It loses electrons. D) It gains electrons. Show Answer Correct Answer: D) It gains electrons. 16. Electrons which are free to move around are also called A) Conduction electrons. B) Valence shell electrons. C) Inner electrons. D) Electron sea. Show Answer Correct Answer: A) Conduction electrons. 17. A ..... opens and closes a circuit? A) Keykey. B) Magnet. C) Switch. D) Electromagnet. Show Answer Correct Answer: C) Switch. 18. An ammeter must have A) Low resistance so that it does affect the current through the main circuit. B) High resistance so that it does affect the current through the main circuit. C) Low resistance so that it does affect the voltage across the resistor. D) None of the above. Show Answer Correct Answer: A) Low resistance so that it does affect the current through the main circuit. 19. A heater is rated as 220 volt 880 watt, what is the current drawn by heater when connected to 220volt ac main, calculate resistance of heater A) 25ohm. B) 35ohm. C) 45ohm. D) 55ohm. Show Answer Correct Answer: D) 55ohm. 20. You close a circuit when you turn a light off. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 21. Battery cells are connected in series to ..... A) Increase voltage output. B) Decrease voltage output. C) Increase current capacity. D) Decrease current capacity. Show Answer Correct Answer: A) Increase voltage output. 22. What happens to the resistance of a wire as its length increases, assuming all other factors remain constant? A) Resistance decreases. B) Resistance increases. C) Resistance remains the same. D) Resistance becomes zero. Show Answer Correct Answer: B) Resistance increases. 23. Which of the following is not a basic part of an electric circuit? A) Conducting wires. B) Transformer. C) A source of electrical energy. D) A device that runs on electrical energy. Show Answer Correct Answer: B) Transformer. 24. What happens when you pull a bulb out of a parallel circuit A) Electricity has another path to follow-the rest of the bulbs will still light up. B) None of the bulbs will light up you created an open circuit. C) Only every other bulb will light up. D) The bulb you pulled out will still light. Show Answer Correct Answer: A) Electricity has another path to follow-the rest of the bulbs will still light up. 25. What is a dry cell battery A) One that uses water to make electricity. B) One that uses a liquid electrolyte solution. C) One that uses a paste electrolyte. D) None of the above. Show Answer Correct Answer: C) One that uses a paste electrolyte. ← 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