This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 3 Current Electricity – Quiz 42 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 42 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How are a bar magnet and Earth similar? A) They both are made of iron. B) They both produce a magnetic field. C) They both produce an electric current. D) They both rotate on an axis. Show Answer Correct Answer: B) They both produce a magnetic field. 2. What is Kirrhoff's Loop Rule? A) Batteries are always higher in voltage. B) The voltage of battery equal the voltage of the bulb. C) More current = more voltage/potential. D) Looooooooooops. Show Answer Correct Answer: B) The voltage of battery equal the voltage of the bulb. 3. Direction of Electric Current A) From Positive terminal of battery to Negative terminal. B) High potential to low potential. C) Opposite to the flow of electron. D) All the above. Show Answer Correct Answer: D) All the above. 4. Select the electrical component used to measure voltage. A) Voltmeter. B) Vaultmeter. C) Ammeter. D) Ampmeter. Show Answer Correct Answer: A) Voltmeter. 5. What is the unit we use to measure electric current? A) Ampere (amp). B) Ohm. C) Volt. D) Newton. Show Answer Correct Answer: A) Ampere (amp). 6. Also known as 'electric potential difference', what quantity describes electrical potential energy per coulomb of charge in a circuit? A) Voltage. B) Electric Current. C) Electric Resistance. D) Electrical Power. Show Answer Correct Answer: A) Voltage. 7. Three resistors each of 2 ohm are connected together in a triangle shape. The resistance between any two vertices will be A) 4/3 ohm. B) 3/4 ohm. C) 3 ohm. D) 6 ohm. Show Answer Correct Answer: A) 4/3 ohm. 8. Four 20-$\Omega$ resistors are connected in series and the combination is connected to a 20-V emf device. The current in any one of the resistors is:. A) 0.25 A. B) 1.0 A. C) 4.0 A. D) 5.0 A. Show Answer Correct Answer: A) 0.25 A. 9. (a) is the flow of an electric charge through a conductor A) A. Electrical Current. B) Static Electricity. C) Magnetism. D) Conductors. Show Answer Correct Answer: A) A. Electrical Current. 10. An example of a parallel circuit is A) The wiring in a house. B) A flashlight. C) A single circular path. D) None of the above. Show Answer Correct Answer: A) The wiring in a house. 11. To prevent overload and overheating of wires A) Fuses are used. B) Circuit breakers are used. C) Fuses and circuit breakers are used. D) Fuses and resistor are used. Show Answer Correct Answer: C) Fuses and circuit breakers are used. 12. Protons are negatively charged A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 13. An image that is formed at the back of the mirror is said to be A) Real image. B) Virtual image. C) Inverted image. D) Magnified image. Show Answer Correct Answer: B) Virtual image. 14. A cell of internal resistance 3 ohm and emf 10 volt is connected to a uniform wire of length 500 cm and resistance 3 ohm. The potential gradient in the wire is A) 30 mV/cm. B) 10 mV/cm. C) 20 mV/cm. D) 4 mV/cm. Show Answer Correct Answer: B) 10 mV/cm. 15. Which of the following materials is a good conductor of electricity? A) Rubber. B) Glass. C) Copper. D) Plastic. Show Answer Correct Answer: C) Copper. 16. Why a voltmeter is connected in parallel with the device across which the voltage is being determined? A) Because of high resistance. B) Because the voltage is higher than current. C) Because it can't measure voltage in series. D) None of the above. Show Answer Correct Answer: A) Because of high resistance. 17. Usually a sudden burst of electricty A) Static Electricity. B) Current Electricity. C) All the above. D) None of the above. Show Answer Correct Answer: A) Static Electricity. 18. The steady flow of electrons between objects A) Battery. B) Source. C) Static electricity. D) Current electricity. Show Answer Correct Answer: D) Current electricity. 19. Electric currents are used to do work such as to produce light and heat or to cause motion like in a motor. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. If current flow in a bulb is 1.5A. What is the charge flow in 5 minutes? A) 4.5x10exp-2 C. B) 4.5x10exp-2 A. C) 2.4x10exp-2 C. D) 2.4x10exp-2 A. Show Answer Correct Answer: A) 4.5x10exp-2 C. 21. A resistor's first three color bands are brown, black, and red. What is its value? A) 10 ohms. B) 10K ohms. C) 200 ohms. D) 1000 ohms. Show Answer Correct Answer: D) 1000 ohms. 22. When a wire stretched uniformaly and its length increased to double its value, then its resistance A) Increased double. B) Increased 4 times. C) Decreased to half. D) Decreased to quarter. Show Answer Correct Answer: B) Increased 4 times. 23. In a meter bridge experiment, when the resistances in the gaps are interchanged the balance point is shifted by 10cm. The ratio of the resistance is: ..... A) 15:5. B) 12:8. C) 11:9. D) 10:9. Show Answer Correct Answer: C) 11:9. 24. Does this statement best describe a parallel or a series circuit. Different currents flow through each resistor. A) Parallel circuit. B) Series circuit. C) All the above. D) None of the above. Show Answer Correct Answer: A) Parallel circuit. 25. Which of the following is an insulator? A) Paper clip. B) Paper fastener. C) Cardboard. D) Piece of metal screen. Show Answer Correct Answer: C) Cardboard. ← 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