Home > Class 12 Physics > Quizzes > Class 12 Physics Practice Test: Electrical Energy - Power
Class 12 Physics Practice Test: Electrical Energy - Power
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 63% • Most missed: “The power consumed by a 300 V bulb, having a resistance of 100 ohms, is 3 Watts.”
Class 12 Physics Practice Test: Electrical Energy - Power
Time left 00:00
10 Questions

1. Electric energy is dependent on time.
2. The SI unit of electrical energy is ____________
3. 1 kWh = ___________
4. Identify the correct formula of electric power.
5. One watt is equal to __________
6. The power consumed by a 300 V bulb, having a resistance of 100 ohms, is 3 Watts.
7. Which one of the following is the practical unit of power?
8. Calculate the number of units of electricity used if a bulb of 100 W is kept on for 5 hours.
9. An engine uses 30 A of current. The resistance offered is 15 ohms. Calculate the power consumed by the engine in horse power.
10. Kabir bought 5 new light bulbs of 50 W each in addition to the 7 bulbs he already had in his house which were also 50 W each. Calculate his electricity bill, if he keeps the new bulbs on for 5 hours and the older bulbs on only for 3 hours, and the cost of one unit of electricity is Rs. 60.

⚡ Recently practiced quizzes in this topic
Live quiz activity
Class 12 Physics Practice Test: Ampere's Circuital Law Class 12 Physics Practice Test: Coulomb's Law Class 12 Physics Practice Test: Magnetism and Gauss's Law Class 12 Physics: Electrostatic Potential and Capacitance Class 12 Physics Practice Test: Combination of Capacitors Class 12 Physics Practice Test: Cells, EMF and Internal Resistance Class 12 Physics Practice Test: Motional Electromotive Force Class 12 Physics Practice Test: Torque on Current Loop & Magnetic Dipole Class 12 Physics: Current Electricity Class 12 Physics: Charges and Fields
 
❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

🌈  Our mission is to help improve your scores in any subject and exam withonline quizzes, practice tests, study guides, & advice for students. Since 2018.
About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | OSHA Basics Quiz | What Should We Know?
Privacy | Terms |
Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.