This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 12 Electricity – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 12 Electricity Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A torch bulb is rated 2.5 V and 750 mA. Calculate its power A) Or. B) 1. C) 4. Kho. D) Swine. Show Answer Correct Answer: B) 1. 2. Electricity that flows in a closed path is called a A) Path. B) Current. C) Circuit. D) None of the above. Show Answer Correct Answer: C) Circuit. 3. What is the unit of electric route A) Empeare. B) Colombo. C) Volt. D) Jolly. Show Answer Correct Answer: A) Empeare. 4. What is melting point of tungsten? A) 3390$^\circ$C. B) 3370$^\circ$C. C) 3350$^\circ$C. D) 3380$^\circ$C. Show Answer Correct Answer: D) 3380$^\circ$C. 5. The SI unit of resistance is: A) Ohm. B) Newton. C) Watt. D) Joule. Show Answer Correct Answer: A) Ohm. 6. What happens to the total resistance in a series circuit when more resistors are added? A) It decreases. B) It increases. C) It remains the same. D) It becomes zero. Show Answer Correct Answer: B) It increases. 7. Two electric bulbs have resistances in the ratio 1:2. If they are joined in series, the energy consumed in these are in the ratio A) 1:2. B) 2:1. C) 4:1. D) 1:1. Show Answer Correct Answer: A) 1:2. 8. The unit of electrical charge is A) Joule. B) Coulomb/ sec. C) Coulomb. D) Was/ampere. Show Answer Correct Answer: C) Coulomb. 9. Which instrument is used to measure the current? A) Voltmeter. B) Ammeter. C) Galvanometer. D) Rheostat. Show Answer Correct Answer: B) Ammeter. 10. Potential difference is named after A) Alessandro Volts. B) Other marie ampere. C) Alessandra Volts. D) Alessandro Volta. Show Answer Correct Answer: D) Alessandro Volta. 11. What is the unit of electric charge? A) Volt. B) Ohm. C) Coulomb. D) Watt. Show Answer Correct Answer: C) Coulomb. 12. The rate of flow of an electric charge is known as: A) Electric potential. B) Electric conductance. C) Electric current. D) None of these. Show Answer Correct Answer: C) Electric current. 13. A circuit breaker contains a thin strip of metal that melts if too much current passes through it. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 14. You are given n identical wires, each of resistance R. When these are connected in parallel, the equivalent resistance is X. When these will be connected in series, then the equivalent resistance will be A) Xn$^{2}$. B) Xn. C) NX. D) X/n. Show Answer Correct Answer: A) Xn$^{2}$. 15. A closed circuit means the electricity can ..... A) Flow through all parts. B) Be cut off from the electrons. C) More power is gained. D) Stop working. Show Answer Correct Answer: A) Flow through all parts. 16. Which of the following is a good conductor of electricity? A) Wood. B) Rubber. C) Silver. D) Glass. Show Answer Correct Answer: C) Silver. 17. For resistors connected in series, the effective resistance is A) The sum of individual resistance. B) The sum of the reciprocal of the individual resistance. C) The product of the individual resistance. D) The product of the reciprocal of the individual resistance. Show Answer Correct Answer: A) The sum of individual resistance. 18. Electric current is defined as A) Detect electric current. B) Negative terminal to positive terminal. C) Positive terminal to negative terminal. D) The flow rate of electric charges through a conductor. Show Answer Correct Answer: D) The flow rate of electric charges through a conductor. 19. 1 mV is equal to: A) 10 volt. B) 1000 volt. C) 10$^{-3}$ volt. D) 10$^{-6}$ volt. Show Answer Correct Answer: C) 10$^{-3}$ volt. 20. Three bulbs of 100 W, 200 W and 60 W are connected in series to the main supply of 220 V. The current will be:A. Equal in 100 W and 200 W.B. Equal in 200 W and 60 W.C. Different in all bulbs.D. None of the above A) A, B and C. B) B and D. C) A and C. D) A and B. Show Answer Correct Answer: D) A and B. 21. Conventionally the direction of electric current is from? A) Positive to Negative Terminal. B) Negative to Positive Terminal. C) All the above. D) None of the above. Show Answer Correct Answer: A) Positive to Negative Terminal. 22. WHICH OF THE FOLLOWING IS CURRENT? A) Rate of change of charge is electrical power. B) Rate of change of charge is current. C) Rate of change of energy is current. D) Rate of change of current is charge. Show Answer Correct Answer: B) Rate of change of charge is current. 23. To protect the house hold electrical appliances from overloading due to excess current A) Fuse wire. B) MCB. C) Both (a) and (b). D) None. Show Answer Correct Answer: C) Both (a) and (b). 24. In the formula of ohm's law which is a constant? A) V (voltage). B) R (resistance). C) I (current). D) P (rho). Show Answer Correct Answer: B) R (resistance). 25. Which of the following materials is commonly used as an insulator? A) Copper. B) Aluminium. C) Rubber. D) Silver. Show Answer Correct Answer: C) Rubber. ← PreviousNext →Related QuizzesClass 10 Science Chapter 12 Electricity Quiz 1Class 10 Science Chapter 12 Electricity Quiz 2Class 10 Science Chapter 12 Electricity Quiz 3Class 10 Science Chapter 12 Electricity Quiz 4Class 10 Science Chapter 12 Electricity Quiz 5Class 10 Science Chapter 12 Electricity Quiz 6Class 10 Science Chapter 12 Electricity Quiz 7Class 10 Science Chapter 12 Electricity Quiz 8Class 10 Science Chapter 12 Electricity Quiz 9Class 10 Science Chapter 12 Electricity Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books