This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 3 Current Electricity – Quiz 47 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 47 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The symbol for current is ..... and the unit is ..... A) C, Amps. B) I, Volts. C) C, Ohms. D) I, Amps. Show Answer Correct Answer: D) I, Amps. 2. The south end of a bar magnet attracts to the A) North end of a bar magnet. B) South end of a bar magnet. C) All the above. D) None of the above. Show Answer Correct Answer: A) North end of a bar magnet. 3. Jordan rubs her socks along the wool carpet as she walks across her house. She grabs onto a metal door knob. What will most likely happen as she touches the door knob? A) The charge will disappear. B) The chair will repel her. C) She will get a light shock. D) She will build up more charge. Show Answer Correct Answer: C) She will get a light shock. 4. The path from the battery through the wire and light bulb and back to the battery is a COMPLETE or CLOSED circuit. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. Across a metallic conductor of non uniform cross section a constant potential difference is applied. The quantity which remain constant along the conductor is- A) Current. B) Current Density. C) Drift Velocity. D) All of these. Show Answer Correct Answer: A) Current. 6. N number of identical resistors first connected in series then in parallel. Ratio of equivalent resistance of series and parallel combination is- A) 1/n. B) 1/n2. C) N$^{2}$. D) N. Show Answer Correct Answer: C) N$^{2}$. 7. A car battery has an emf of 12V and an internal resistance of 0.005$\Omega$. The terminal voltage when a load current of 100A is drawn is ..... A) 11.5V. B) 0.5V. C) 7.0V. D) 11.5A. Show Answer Correct Answer: A) 11.5V. 8. When all parts of the circuit are connected it is a ..... circuit. A) Open. B) Closed. C) All the above. D) None of the above. Show Answer Correct Answer: B) Closed. 9. If a battery produces 12.6 Volts, what would be the current for a 6 Ohm resistor? A) 2.1 Amps. B) 75.6 Amps. C) 0.5 Amps. D) 15 Amps. Show Answer Correct Answer: A) 2.1 Amps. 10. In a parallel cricuit, how much voltage do two bulbs have if the battery has 6 volt A) Each one will have-3 volts. B) Both of them will have-6 volts. C) One of them is have-2 volts while the other has-4 volts. D) There is no volts in either bulbs. Show Answer Correct Answer: B) Both of them will have-6 volts. 11. Two objects with LIKE static charges will A) Attract each other. B) Even out in the end. C) Repel each other. D) Cause a spark. Show Answer Correct Answer: C) Repel each other. 12. Which of the following could be used as the strongest rod of an electromagnet? A) Pencil. B) Drinking straw. C) Iron nail. D) Aluminum foil. Show Answer Correct Answer: C) Iron nail. 13. What is the main difference between static and current electricity? A) Static electricity is a flow of electrons, while current electricity is stationary. B) Static electricity is stationary, while current electricity involves a flow of electrons. C) Both involve a continuous flow of electrons. D) Both are used to power electronic devices. Show Answer Correct Answer: B) Static electricity is stationary, while current electricity involves a flow of electrons. 14. How does resistance affect current? A) Less resistance-less current. B) More resistance-less current. C) More resistance-more current. D) Resistance does not affect current. Show Answer Correct Answer: B) More resistance-less current. 15. A 47K ohm resistor would have which colors on its first three bands? A) Yellow, Violet, White. B) Yellow, Violet, Orange. C) Red, White, Blue. D) Orange, Yellow, Violet. Show Answer Correct Answer: B) Yellow, Violet, Orange. 16. What is 32000000 in standard form? A) $32\times10^6$. B) $3.2\times10^6$. C) $3.2\times10^7$. D) $32000000\times10^7$. Show Answer Correct Answer: C) $3.2\times10^7$. 17. Where is alternating current commonly used? A) In car batteries. B) In solar panels. C) In homes. D) None of the above. Show Answer Correct Answer: C) In homes. 18. Turning on a lamp and getting shocked when jumping on a trampoline are both examples of ..... A) Electricity. B) Naturally Occurring Electricity. C) Static Electricity. D) Current Electricity. E) Human Harnessed Electricity. Show Answer Correct Answer: A) Electricity. 19. What is the S.I unit for resistance? A) Ohm. B) Ampere. C) Volt. D) Joules. Show Answer Correct Answer: A) Ohm. 20. Something that allows electricity to move easily through it A) Source. B) Conductor. C) Closed switch. D) Insulator. Show Answer Correct Answer: B) Conductor. 21. Resistance is directly proportional to ..... A) Area. B) Length. C) Material. D) Size. Show Answer Correct Answer: B) Length. 22. A current of 3 A flows through a conductor for 10 s. What amount of charge passes through the conductor? A) 30 A. B) 30 C. C) 3.33 C. D) 3.33 A. Show Answer Correct Answer: B) 30 C. 23. If one of the light bulb in series circuit is taken off, what will happen to the other light bulb? A) The other light bulb will be on. B) The other light bulb will be off. C) The other light bulb will stay on. D) Both light bulb will be on. Show Answer Correct Answer: B) The other light bulb will be off. 24. The internal resistance of the cell A) Always acts in the cell in open circuit. B) Acts only in closed circuit and it reduces the EMF. C) Acts only in the closed circuit and it reduces the current. D) None of these. Show Answer Correct Answer: C) Acts only in the closed circuit and it reduces the current. 25. Kirchoff's first and second laws of electric circuits are consequences of A) Conservation of energy and electric charges respectively. B) Conservation of energy. C) Conservation of electric charge and energy respectively. D) Conservation of electric charge. Show Answer Correct Answer: C) Conservation of electric charge and energy respectively. ← 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