This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 12 Electricity – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 12 Electricity Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The commercial unit of energy is: A) Watt. B) Watt-hour. C) Kilowatt-hour. D) Kilo. Show Answer Correct Answer: C) Kilowatt-hour. 2. An electric bulb is rated 220V and 100W.When it is operated on 110V.The power consumed will be A) 100W. B) Pumice. C) 50W. D) Brother. Show Answer Correct Answer: D) Brother. 3. The unit of electrical resistance is: A) Ampere. B) Volt. C) Coulomb. D) Ohm. Show Answer Correct Answer: D) Ohm. 4. A wire of resistance R is stretched to twice its original length. Its new resistance will be ..... ? A) 4r. B) $\frac{R}{4}$. C) 2R. D) $\frac{R}{2}$. Show Answer Correct Answer: A) 4r. 5. The rates of movement of charges can also be called A) Electric current. B) Electric carrier. C) Electrician. D) Electrical. Show Answer Correct Answer: A) Electric current. 6. The work done to move a unit of charge is A) Current, I. B) Potential difference, V. C) Resistance, R. D) Power, P. Show Answer Correct Answer: B) Potential difference, V. 7. Electric Current in a conductor is produced by? A) The Flow of Volt. B) The Flow of Electrons. C) The Flow of Coulomb. D) The Flow of Ampere. Show Answer Correct Answer: B) The Flow of Electrons. 8. Alloys are generally used in electric heating devices. Why? A) Alloys have higher resistivity. B) Alloys do not oxidize easily. C) High melting point. D) All the above. Show Answer Correct Answer: D) All the above. 9. The continuous and surrounded path of charges is thus A) Power-capacity. B) Electricity. C) Electric power. D) Electric power. Show Answer Correct Answer: B) Electricity. 10. Which of the following describes the flow of electric current? A) It flows from positive to negative. B) It flows from negative to positive. C) It flows in both directions. D) It does not flow at all. Show Answer Correct Answer: B) It flows from negative to positive. 11. What happens when an insulator is in the presence of a charged object? A) If they're touching, the insulator will prevent the object from transferring its charge to its surroundings. B) The insulator will become negatively charged. C) The object will instantly lose all of its charge at once. D) The object will transfer its charge to the insulator and its surroundings. Show Answer Correct Answer: A) If they're touching, the insulator will prevent the object from transferring its charge to its surroundings. 12. Four wires of resistance R are connected in form of square find its resistivitance A) R. B) 2R. C) 4r. D) 6r. Show Answer Correct Answer: A) R. 13. How many volts are in a circuit with a battery that has a resistance of 10 Ohms and a current of 2 Amps? A) .5 Volts. B) 5 Volts. C) 20 Volts. D) None of the above. Show Answer Correct Answer: C) 20 Volts. 14. The least resistance obtained by using $2\Omega$ $4\Omega$ $1\Omega$ $100\Omega$ A) $<100\\Omega$. B) $<4\\Omega$. C) $<1\\Omega$. D) $>2\\Omega$. Show Answer Correct Answer: C) $<1\\Omega$. 15. Which of the given statements is not true, regarding the electrical set-up for the verification of Ohm's law: A) The voltmeter is connected in parallel with the known resistance. B) The ammeter is connected in series circuit. C) The rheostat can only increase the resistance in electric circuit. D) The single key is used to switch on/off the electric circuit. Show Answer Correct Answer: C) The rheostat can only increase the resistance in electric circuit. 16. An electric kettle consumes 1 kW of electric power when operated at 220 V. A fuse wire of what rating must be used for it? A) 1 A. B) 2 A. C) 4 A. D) 5 A. Show Answer Correct Answer: D) 5 A. 17. Which equation is correct by the law of Om A) V = go. B) R=V/I. C) I=V/I. D) High insertion of all. Show Answer Correct Answer: D) High insertion of all. 18. If R1 and R2 be the resistance of the filament of 40 W and 60 W respectively operating 220 V, then A) R1 B) R2 C) R1 = r2. D) R1 $\geq$ r2. Show Answer Correct Answer: B) R2 19. What is the unit of electrical resistance? A) Ohm. B) Watt. C) Volt. D) Joule. Show Answer Correct Answer: A) Ohm. 20. A wire of resistance 20 ohm is bent in form of a circle. Find the equivalent resistance between two diametrically opposite ends A) 40 ohm. B) 20 ohm. C) 10 ohm. D) 5 ohm. Show Answer Correct Answer: D) 5 ohm. 21. The device used to control the flow of electric current is A) Rheostat. B) Resistor. C) Inductor. D) Capacitor. Show Answer Correct Answer: A) Rheostat. 22. The other unit of electric power is A) Had ampere. B) Ohm meter. C) Watt second. D) None of the above. Show Answer Correct Answer: A) Had ampere. 23. The rate of flow of charges is called as A) Current, I. B) Potential difference, V. C) Resistance, R. D) Power, P. Show Answer Correct Answer: A) Current, I. 24. Electrons flows from 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: B) Negative terminal to positive terminal. 25. The continuous and version of the electric current is called the way A) Circuit. B) Heart. C) Zodia. D) Electricity. Show Answer Correct Answer: D) Electricity. ← 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 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books