This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 3 Current Electricity – Quiz 46 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 46 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A thicker wire offers A) Less resistance. B) More resistance. C) All the above. D) None of the above. Show Answer Correct Answer: A) Less resistance. 2. How much resistance does a heavy duty flashlight have if it has a current of 25 mA flowing through it and is beingpowered by four 1.5 V cells? A) 0.15$\Omega$. B) 1.5$\Omega$. C) 15$\Omega$. D) 150$\Omega$. Show Answer Correct Answer: A) 0.15$\Omega$. 3. This states that the current flowing in a circuit is directly proportional to the applied potential difference and inversely proportional to the resistance in the circuit. A) Kepler's Law. B) Law of gravity. C) Ohm's Law. D) Thermodynamics Law. Show Answer Correct Answer: C) Ohm's Law. 4. The power source that pushes electricity around a circuit A) Light bulb. B) Switch. C) Battery. D) Wire. Show Answer Correct Answer: C) Battery. 5. The amount of energy used to move one coulomb of electrons through the circuit is its A) Device. B) Voltage. C) Circuit. D) None of the above. Show Answer Correct Answer: B) Voltage. 6. Two resistance filaments of samen length are connected first in series and then in parrallel.Find the power dsipation in both cases assumming equal current flows inmain circuit A) 1:4. B) 4:1. C) 1:2. D) 2:1. Show Answer Correct Answer: B) 4:1. 7. Where is electrical energy made? A) Factories. B) Power plants. C) Schools. D) None of the above. Show Answer Correct Answer: B) Power plants. 8. The conductance of a conductor of resistance 2 milli ohm A) 5 Siemen. B) 0.5 Siemen. C) 50 Siemen. D) 500 Siemen. Show Answer Correct Answer: D) 500 Siemen. 9. The best phrase to describe static electricity is A) Unbalanced charges. B) Balanced charges. C) Current charges. D) Circuit charges. Show Answer Correct Answer: A) Unbalanced charges. 10. This force occurs when there is an attractive and repulsive force between two poles. A) Magnetic. B) Electric. C) Electromagnetism. D) None of the above. Show Answer Correct Answer: A) Magnetic. 11. When two magnetic North poles are brought close to each other, they will A) Attract. B) Repel. C) Create sparks. D) Cancel each other out. Show Answer Correct Answer: B) Repel. 12. Fill in the blank:A ..... is a controlled path through which an electric current passes. A) Current. B) Circuit. C) Discharge. D) Volt. Show Answer Correct Answer: B) Circuit. 13. Energy transformations occur when current flows through a circuit that has ..... ..... A) Voltage. B) Electric current. C) Electric resistance. D) Coulomb. Show Answer Correct Answer: C) Electric resistance. 14. To Produce 10$^{3}$joule of heat in 10seconds, how much voltage should be applied to 100ohm resistance A) 20volt. B) 50volt. C) 100volt. D) 200volt. Show Answer Correct Answer: C) 100volt. 15. Among the following which has low temperature co efficient of resistance? A) Copper. B) Silver. C) Aluminium. D) Constantan. Show Answer Correct Answer: D) Constantan. 16. Which of the following always has a negative charge? A) A proton. B) An electron. C) A battery. D) All of the above. Show Answer Correct Answer: B) An electron. 17. What type of current is produced in a battery A) Induced. B) Magnetic. C) Alternating. D) Direct. Show Answer Correct Answer: D) Direct. 18. Matter is the ability to do work A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 19. Which of the following is true about electrical circuits? A) They have to involve a wire made of insulating material. B) Every circuit needs to have a switch that can stop and start the flow of electricity. C) An open circuit works as long as the wire connects a bulb to the positive end of a battery. D) Electricity can only flow if the circuit is a closed loop. Show Answer Correct Answer: D) Electricity can only flow if the circuit is a closed loop. 20. The work done to bring unit positive charge from infinity to a point in an electric field is known as ..... A) Potential. B) Resistance. C) Current. D) Charge. Show Answer Correct Answer: A) Potential. 21. Energy E is stored in paralle plate capacitor C1. An identical uncharged capacitor C2 is connected to it, kept in contact with it for a while and then disconnected, the energy stored in C2 is A) E/2. B) E/3. C) E/4. D) Zero. Show Answer Correct Answer: C) E/4. 22. The flow of electric charges is A) Voltage. B) Current. C) Resistance. D) Electricity. Show Answer Correct Answer: D) Electricity. 23. All electricity is the result of electrical charge. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. What is the term for a substance with zero resistance at very low temperatures? A) Conductor. B) Superconductor. C) Insulator. D) Resistor. Show Answer Correct Answer: B) Superconductor. 25. A circuit that is not connected is called what kind of circuit? A) Closed. B) Parallel. C) Series. D) Open. Show Answer Correct Answer: D) Open. ← 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