Difference between revisions of "Parallel Circuits"
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The '''Parallel Circuits''' box from the ''Reference Tables for Physical Science: Physics'' (2025 Edition) gives the three rules for components connected in parallel. It primarily supports [[HS-PS3-6]], together with the [[Electricity]] equations and the [[Series Circuits]] box. | The '''Parallel Circuits''' box from the ''Reference Tables for Physical Science: Physics'' (2025 Edition) gives the three rules for components connected in parallel. It primarily supports [[HS-PS3-6]], together with the [[Electricity]] equations and the [[Series Circuits]] box. | ||
| − | + | <span id="parallel-current"></span><span id="parallel-voltage"></span><span id="parallel-resistance"></span>[[File:Parallel Circuits.png|440px|class=img-fluid|alt=Parallel Circuits from the Physics Reference Tables (2025 Edition)]] | |
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== What the parallel circuits box shows == | == What the parallel circuits box shows == | ||
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== Rows == | == Rows == | ||
| − | + | A link or an <code><nowiki>{{Rt}}</nowiki></code> chip ([[Template:Rt]]) can point at one equation or constant with these anchors; each one lands on the table above: | |
* <code>parallel-current</code> – ''I'' = ''I''<sub>1</sub> + ''I''<sub>2</sub> + … | * <code>parallel-current</code> – ''I'' = ''I''<sub>1</sub> + ''I''<sub>2</sub> + … | ||
* <code>parallel-voltage</code> – ''V'' = ''V''<sub>1</sub> = ''V''<sub>2</sub> = … | * <code>parallel-voltage</code> – ''V'' = ''V''<sub>1</sub> = ''V''<sub>2</sub> = … | ||
Revision as of 17:40, 25 October 2026
| ⇱ All Physics Reference Tables (2025 Edition) | |
| ← Series Circuits | |
The Parallel Circuits box from the Reference Tables for Physical Science: Physics (2025 Edition) gives the three rules for components connected in parallel. It primarily supports HS-PS3-6, together with the Electricity equations and the Series Circuits box.
What the parallel circuits box shows
In a parallel circuit each branch is connected directly across the source, so every branch has the same potential difference; the current from the source splits among the branches, so the branch currents add up to the total; and the reciprocals of the resistances add, so the equivalent resistance is smaller than the smallest branch resistance, and adding a branch raises the total current. With V = IR these rules give the current in each branch.
Rows
A link or an {{Rt}} chip (Template:Rt) can point at one equation or constant with these anchors; each one lands on the table above:
parallel-current– I = I1 + I2 + …parallel-voltage– V = V1 = V2 = …parallel-resistance– 1/Req = 1/R1 + 1/R2 + …
Regents Exam Questions
Released Regents questions that cannot be answered without this table, listed by exam. Each link opens the question with its answer key; the standard is the one the question assesses.
| Exam | Cluster | Question | Standard |
|---|---|---|---|
| June 2026 Physics Regents | Flashlight Physics | Question 33 | HS-PS3-6 |