Ohm's Law Interactive Wiring Simulation

Configurations

Select the metal

Battery voltage

Allowed value: 1 V to 12 V

Selected 3 V

Length of the wire

Allowed value: 10 cm to 100 cm

Selected 10 cm

Diameter of the wire

Allowed value: 0.2 mm to 1 mm

Selected 0.2 mm

Resistance of the rheostat

Allowed value: 1 Ω to 100 Ω

Selected 1 Ω

Wire colour

Enter any two values. The visual simulation will explain the missing value using Ohm's Law (V = I × R).

Select Problem Category & Type:

📝 Formula Preview

              R = V / I
            

🎮 Training

Step 1 of 7

👆 Set Battery Voltage to 6V or higher!

Live result running — pause or reset to edit

Show circuit diagram

Battery / Power Supply

Rheostat

Key / Switch

Resistance Wire

00.000

DIGITAL AMMETER

Ammeter

00.000

DIGITAL VOLTMETER

Voltmeter

Voltage across wire 0.000 V

Current 0.000 A

Resistance of wire 0.000 Ω

Ohm's Law R = V / I

Observation Table

Trial	Voltage (V)	Current (I)	Resistance (Ω)
1	—	—	—
2	—	—	—
3	—	—	—
4	—	—	—
5	—	—	—

Category	Problem Types Covered	Core Formulas
1. Basic Ohm's Law	Find V, I, or R given the other two parameters.	V = I × R
2. Series Resistors	Equivalent resistance (2 or 3 resistors), current & voltage drops, or finding an unknown series resistor.	R_eq = R1 + R2 + ...
3. Parallel Resistors	Equivalent resistance (2 or 3 resistors), current sharing branches, or finding an unknown parallel resistor.	1/R_eq = 1/R1 + 1/R2 + ...
4. Electrical Power	Determine P from V, I, or R, or backtrack to find current or resistance.	P = V×I = I²R = V²/R
5. Energy & Cost	Calculate work done (Joules/kWh), operating time, and commercial electricity billing costs.	W = P × t
6. Resistivity	Solve for material resistivity ρ, resistance, wire length, or cross-sectional area.	R = ρ × L / A
7. Battery / EMF	Cells in series/parallel, battery internal resistance, and terminal voltage drops.	V_term = E - I × r
8. Unit Converter	Helper converting mA ↔ A, kΩ ↔ Ω, MΩ ↔ Ω, kWh ↔ J.	Unit Multipliers

Ohm's Law

Observation Table

🧮 Ohm's Law Problem Solver

💡 Simulation Explanation & Formula Steps

1. Material & Wire Configurations

1. Power Supply & Key

2. Ammeter in Series

3. Voltmeter in Parallel

4. Rheostat Control

5. Ohm's Law (V = I × R)

6. Resistivity & Shape

Ohm's Law

Observation Table

🧮 Ohm's Law Problem Solver

💡 Simulation Explanation & Formula Steps

💡 Experiment Help Guide

🔌 How to Wire the Circuit

📋 Step-by-Step Laboratory Procedure

⚠️ Common Wiring Mistakes & Their Effects

📖 Theory & Formulas

🎯 Test Yourself Challenge Guide

🧮 Problem Solver Guide

💥 Circuit Burnout Alert!

The wire has melted and snapped!

🔢 Problem Solver Result

Challenge Verification

Validation Successful!