Resistance in a Wire Simulation

Configurations

Resistance Target Challenge LEVEL
1

The backend question will load here. Students must change wire settings and submit the result.

Target resistance - Ω

Wire material

Material controls resistivity ρ.

Resistivity ρ (0.00000001 - 0.000002)

Ωm

Wire length (10 - 120)

Wire diameter (0.2 - 2.0)

Wire temperature (20 - 120)

°C

Ready. Change length, diameter or material to observe resistance.

Show principle diagram

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Reading labels Formula card Current indicators Heating clue

6.0 V

0.00 VVoltmeter

0.00 AAmmeter

5 ΩRheostat

✦

60 cm

0.8 mm

Nichrome wire

Heating: Low

Resistance of a wire R = ρL / A Length ↑ → R ↑ | Area ↑ → R ↓

Wire resistance0 Ω

Current0 A

Wire voltage0 V

Area0 mm²

Observation Table

Trial	Material	Length	Diameter	Area	Wire Resistance	Battery Voltage	Rheostat	Current	Observation

Circuit Controls

Battery voltage (1 - 12)

Rheostat resistance (0 - 20)

Problem Solver

This tab is only for the textbook solved problem. Enter the given values and calculate the answers using SI units.

Length L

SI unit: metre (m)

Resistance R

SI unit: ohm (Ω)

Area A

m²

2 × 10⁻⁷ m² = 0.0000002 m²

Solved Problem 4

Question

The resistance of a wire of length 10 m is 2 Ω. If the area of cross-section of the wire is 2 × 10⁻⁷ m², determine its (i) resistivity, (ii) conductance and (iii) conductivity.

Length L10 m

Resistance R2 Ω

Area A2 × 10⁻⁷ m²

Solved Problem Wire Model

L = 10 m

A = 2 × 10⁻⁷ m²

R = 2 Ω

Resistivityρ = RA / L

ConductanceG = 1 / R

Conductivityσ = 1 / ρ

Resistivity ρ4 × 10⁻⁸ Ω m

Conductance G0.5 mho

Conductivity σ0.25 × 10⁸ mho m⁻¹

Resistance in a Wire Simulator

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Observation Table

Solved Problem 4

Step-by-Step Solution

Given

Step 1: Find Resistivity

Step 2: Find Conductance

Step 3: Find Conductivity

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Observation Table

Solved Problem 4

Step-by-Step Solution

Given

Step 1: Find Resistivity

Step 2: Find Conductance

Step 3: Find Conductivity

Help Guide

Simulation Result

Step-by-Step Solution

Answer Check

Solution Steps

Problem Solver Help Guide

Step-by-Step Guide