Force between parallel current-carrying wires
Two parallel wires: currents in the same direction attract, opposite repel, with F/L = μ₀I₁I₂/2πd. This is the definition of the ampere; try a flexible-wire demonstration.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 4. Moving Charges and Magnetism |
| NCERT section | 4.7 |
| Level | NCERT level |
| Time | about 12 minutes |
| Access | Included in a PractiSci plan |
What you do in the lab
Change the controls and watch the physics behave in real time in 3D. Live readouts and graphs show the numbers behind it, and the Learn tab has the theory, procedure, observations and viva questions. Works on a phone or a laptop, in English and Hindi.
Topics: Ampere force · parallel currents · magnetic force · definition of ampere
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- Charged particle in uniform E and B fields
- Torque on a current loop and magnetic moment
- Cyclotron
- Galvanometer to ammeter and voltmeter
- Hall effect: carrier sign, density and mobility
- Helmholtz coils: a uniform magnetic field
- Moving coil galvanometer, ammeter and voltmeter conversion