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Grade 12 Electric Circuits Worksheet with Answers
Grade 12 (US) · Year 13 (UK) · Class 12 (India) · Physics
Unit 3: Waves, Light & ElectricityCircuitsNGSS HS-PS3-3
Ohm's law, series and parallel resistance, and electric power. This free high school worksheet has 16 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
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Practice Sheetaethelsystems.comElectric Circuits
Grade 12 · Physics
Name
Class
Date
Learning goal: Circuits · NGSS HS-PS3-3
Directions: This worksheet has 2 parts. Read the instructions at the start of each part.
30 V is applied across a 10 Ω resistor. What is the current?
Answer: 3 A
Label the diagram. Use the words in the box.
Word bank
- 1
- 2
- 3
- 4
Answer each question. Use full sentences where you can.
- 5
Resistors of 3 Ω, 16 Ω and 17 Ω are connected in series. What is the total resistance?
- 6
A device uses 4 A at 60 V. What power does it use? (P = VI)
- 7
A device uses 1 A at 9 V. What power does it use? (P = VI)
- 8
24 V drives a current of 2 A. What is the resistance?
- 9
8 V drives a current of 2 A. What is the resistance?
- 10
Resistors of 15 Ω, 16 Ω and 13 Ω are connected in series. What is the total resistance?
- 11
Resistors of 18 Ω, 14 Ω and 11 Ω are connected in series. What is the total resistance?
- 12
Resistors of 20 Ω, 17 Ω and 19 Ω are connected in series. What is the total resistance?
- 13
Resistors of 16 Ω, 8 Ω and 19 Ω are connected in series. What is the total resistance?
- 14
Resistors of 16 Ω, 6 Ω and 6 Ω are connected in series. What is the total resistance?
- 15
Resistors of 7 Ω, 14 Ω and 15 Ω are connected in series. What is the total resistance?
- 16
8 V drives a current of 1 A. What is the resistance?
★ Challenge corner for fast finishers
Why does your breath make fog on a cold window?
How did I do?
Teacher's comments
Free printable worksheets with answer keys · aethelsystems.com/worksheets/physics/12/circuits
Answer key — Electric Circuits (Grade 12)
- 1.battery
- 2.bulb
- 3.switch
- 4.wire
- 5.36 Ω
- 6.240 W
- 7.9 W
- 8.12 Ω
- 9.4 Ω
- 10.44 Ω
- 11.43 Ω
- 12.56 Ω
- 13.43 Ω
- 14.28 Ω
- 15.36 Ω
- 16.8 Ω
- ★water vapor in your breath condenses on the cold glass
Answer key (click to show)
- 1.battery
- 2.bulb
- 3.switch
- 4.wire
- 5.36 Ω
- 6.240 W
- 7.9 W
- 8.12 Ω
- 9.4 Ω
- 10.44 Ω
- 11.43 Ω
- 12.56 Ω
- 13.43 Ω
- 14.28 Ω
- 15.36 Ω
- 16.8 Ω
- ★water vapor in your breath condenses on the cold glass (challenge corner)
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