Free Printable WorksheetScienceGrade 12Science Curriculum12.114

12.114 Parallel Circuits Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Physics Science worksheet provides structured practice on 12.114 Parallel Circuits. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Parallel Circuits: Determine equivalent resistance, branch current, voltage, and power distribution in parallel circuits. Aligned to NGSS, CCSS Literacy and Mathematics, AP Physics, and selected state frameworks 12.114 - Parallel Circuits: NGSS HS-PS2-4, HS-PS2-5, HS-PS3-2, HS-PS3-3, HS-PS3-5, HS-PS4-5; CCSS HSN-Q.A, HSA-CED.A, HSF-IF, HSG-MG; AP Physics 2 E&M units; AP Physics C: E&M enrichment; TX TEKS Physics §112.45(c) electricity and magnetism; FL SC.912.P.10, SC.912.P.12; VA PH.6; MA/CA/NY HS-PS2/HS-PS3/HS-PS4.

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Physics

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 12.114 Parallel Circuits skill assessments:

Problem 1Difficulty: Mastery

A 48 V source powers four parallel branches: 24 ohms, 48 ohms, an unknown resistor R, and a sensor branch that draws 0.50 A. The total source current is 5.50 A. What is R?

A12 ohms

B48 ohms

C96 ohms

D24 ohms

Solution & Explanation:The known resistor branches draw 48/24 = 2.0 A and 48/48 = 1.0 A. Including the sensor branch gives 3.5 A, so the unknown branch carries 2.0 A. Therefore R = 48/2.0 = 24 ohms.

Problem 2Difficulty: Mastery

Three parallel branches connected to 12 V draw currents of 2 A, 3 A, and 6 A. Which branch has the smallest resistance and the greatest power?

AThe 2 A branch

BThe 3 A branch

CThe 6 A branch

DAll branches have equal resistance and power

Solution & Explanation:At the same voltage, a larger current means a smaller resistance. Power is P = VI, so the 6 A branch also dissipates the greatest power.

Problem 3Difficulty: Mastery

A 24 V source must supply exactly 10 A to a parallel load. One branch is 6 ohms, and exactly one unknown branch will be added in parallel. What should the unknown branch resistance be?

A2.4 ohms

B4 ohms

C6 ohms

D10 ohms

Solution & Explanation:The target equivalent is Req = 24/10 = 2.4 ohms. Total conductance must be 1/2.4 = 0.4167 S. The 6 ohm branch contributes 0.1667 S, so the added branch must contribute 0.2500 S, giving R = 4 ohms.

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Frequently Asked Questions

Common questions about printing, using, and solving this worksheet

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Physics Science students. It aligns with educational standard 12.114 (NGSS HS-PS2-4, HS-PS2-5, HS-PS3-2, HS-PS3-3, HS-PS3-5, HS-PS4-5; CCSS HSN-Q.A, HSA-CED.A, HSF-IF, HSG-MG; AP Physics 2 E&M units; AP Physics C: E&M enrichment; TX TEKS Physics §112.45(c) electricity and magnetism; FL SC.912.P.10, SC.912.P.12; VA PH.6; MA/CA/NY HS-PS2/HS-PS3/HS-PS4.).