AI Solver by AskSia

Ohm's Law Solver: V = IR, in any direction

Type or photograph the values you know (any two of V, I, R). AskSia solves for the third using V = IR, with units tracked. Power calculations P = IV = I^2 R = V^2/R also available.

Works with word problems, equations, code, and science prompts.
∫ 3x² · sin(x) dx
SubjectsCalculusAlgebraPhysicsChemistryBiologyCSStatisticsEcon
4.9 / 5 · trusted by 2M+ students · 50M+ problems solved
Quick Answer

What is Ohm's law?

Ohm's law states that the voltage across a resistor equals the current through it times its resistance: V = I*R. The three quantities are voltage V (volts), current I (amperes), and resistance R (ohms). Given any two, solve for the third. Ohm's law applies to ohmic materials (resistors with constant R). Power dissipated by a resistor: P = IV = I^2 R = V^2/R (watts).

98%
solution accuracy
50M+
problems solved
~1.5s
avg solve time
A+
study-ready explanations
Why AskSia Solver

Why students use AskSia for Ohm's Law.

Every step transparent, every answer self-checked.

V = IR any direction.

Solve for V, I, or R given the other two.

Direct

Units tracked.

Volts, amperes, ohms, watts. AskSia preserves units in every step.

Units

Power formulas.

P = IV = I^2 R = V^2/R. AskSia uses whichever form fits known data.

Power

Series and parallel.

Total R changes based on circuit configuration.

Circuit

Photo, paste, or type.

Snap handwritten or printed problems with your phone, paste from any online homework portal, or type with full LaTeX support.

Multi-modal input

Verified by AskSia.

Every answer gets a self-check pass. Sia catches sign errors and algebra mistakes before you submit your homework.

Self-checked
How It Works

Solve any Ohm's Law problem in three steps.

Step 01

Enter the problem.

Type the expression, paste from your homework, snap a photo, or speak it. AskSia parses your input and identifies the structure.

Input mode
Snap a Photo
Textbook, handwriting, screenshot
Paste Text
Word problem or equation
Calculator
LaTeX-ready equation editor
Step 02

AskSia picks the method.

Based on the problem structure, AskSia chooses the cleanest solution path and labels each step with the operation performed.

Calculus · Step 4 of 4
1.4s
1
Set curves equal
x² = 2x → x = 0, x = 2
2
Set up the integral
A = ∫₀² (2x - x²) dx
3
Evaluate
A = [x² - x³/3]₀² = 4/3
Step 03

Read the verified answer.

Final result appears with a substitution or composition check. Practice problems on the same concept are one tap away.

Auto-generated diagram
Region between y = 2x and y = x² — area = 4/3
Available On

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you study.

Every solve syncs across Web, iOS, and Android — start it at your desk, finish on your phone.

Web App

Full study studio

Split-panel interface with the worked solution on the left, the auto-generated diagram and AI tutor chat on the right.

Drag & drop image upload + LaTeX equation editor
Auto-generated diagrams render alongside steps
Side-panel AI tutor chat for hints and alt methods
Export to PDF, DOCX, Notion, or Google Docs
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Hi! What are we studying today?
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Calculus
98% verified
1.4s
Step 4 of 4 · Evaluate
A = [x² - x³/3]₀² = 4/3
Mobile App

Snap & solve, anywhere

Open the camera, frame the problem, and the worked solution plus diagram appear in seconds.

One-tap snap-and-solve on iOS and Android
Pinch-to-zoom diagrams, swipe between steps
Auto-sync solves with your Web library
Offline review of saved solutions and flashcards
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Calc
98%
1.4s
Area between y=2x & y=x²
A = 4/3 sq. units ✓
Use Cases

What the Ohm's Law solver covers.

📐

Find current.

Given V and R, I = V/R.

Find I
⚛️

Find voltage.

Given I and R, V = IR.

Find V
🧪

Find resistance.

Given V and I, R = V/I.

Find R
🧬

Power dissipation.

Use whichever P formula matches known quantities.

Power
💻

Multi-element circuits.

Series resistors add; parallel resistors combine reciprocally.

Circuit
🎯

Verify your homework.

Paste your candidate answer and the original problem. AskSia walks the work, flags any divergent step, and tells you the correct final value.

Answer check
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AskSia vs. ChatGPT,
Photomath & Symbolab.

General chatbots hallucinate. Photo solvers stop at math. AskSia is built for actual coursework with verified accuracy, visual learning, and every subject.

Feature comparison between AskSia Solver and alternatives
FeatureAskSia SolverChatGPTPhoto Solvers
Solution accuracy✓ 98%~70-85%, hallucinations~90%, math only
Auto-generated diagrams✓ Every solveInconsistent / brokenGraphs only, math-only
Step-by-step explanations✓ Numbered + plain EnglishInconsistent depth✓ Math steps
Subject coverage✓ Math, Physics, Chem, Bio, CS, Econ✓ Wide but unverifiedMath only
Photo input✓ Handwriting + diagrams + codePhotos OK, weak on handwriting✓ Math photos only
Answer verification✓ Self-checked before displayNo verificationMath engine only
Tutor follow-ups✓ Hints, alt methods, ELI5✓ General chatNot available
Practice and flashcards✓ One-tap from any solveManual promptingNot available
Code debugging✓ Python, Java, C++, SQL...✓ YesNot available
Free to start✓ Daily solves, no cardLimited model accessSteps locked behind paywall
FAQ

Frequently asked questions.

What is the unit relationship in Ohm's law?
V (volts) = I (amperes) * R (ohms). One volt = one ampere * one ohm. Equivalently, one ohm = one volt per ampere. AskSia confirms units in every solve and converts when input units differ.
How do I find total resistance?
Series: R_total = R_1 + R_2 + ... Parallel: 1/R_total = 1/R_1 + 1/R_2 + ... AskSia applies the right formula based on the circuit description.
What are the three power formulas?
P = I*V (current times voltage), P = I^2 * R (current squared times resistance), P = V^2/R (voltage squared divided by resistance). All three are equivalent for a resistor by Ohm's law. Use whichever has the two quantities you know.
Does Ohm's law work for all conductors?
No, only ohmic materials with constant R. Non-ohmic materials (diodes, transistors, light bulbs at high temperatures) have non-linear V-I curves, so a single R does not describe them. For such materials, Ohm's law gives only a local approximation.
How accurate is AskSia?
AskSia is engineered for accuracy on standard high school and college coursework. Accuracy comes from subject-specialized models, a symbolic verification pass that catches arithmetic errors, and a self-check step that re-derives the answer before showing it to you.
Can I get practice problems and flashcards?
Yes. After any solve, ask Sia to generate similar practice problems at SAT, ACT, AP, IB, or college difficulty, or build a flashcard set on the underlying concept in one tap. Useful for exam prep and spaced repetition before a quiz, midterm, or final.
How much does AskSia cost?
AskSia has a free plan that includes daily solves across all subjects. AskSia Pro and Super include unlimited solves, advanced subjects, the full AI tutor companion, exports, and priority response speed. See pricing for details.
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V, I, R, the third one out.

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