Electric Current
Learning Objectives
- Students will be able to define current as the flow of charge per unit time
- Students will be able to distinguish between conventional and electron flow
- Students will be able to measure current using an ammeter
Core Concepts
- Current as charge flow
- Conventional current
- Electron flow
Formulas
$$I = \frac{Q}{t}$$
Electric current as the amount of charge passing a point per unit time
Units
| Ampere | A |
Interesting Fact
Conventional current was defined before we knew that electrons carry the negative charge
Key Scientist
André-Marie Ampère
Studied the relationships between current and magnetic effects
Modern Research
Superconducting currents allow charge to flow indefinitely without resistance, revealing quantum mechanical coherence effects being explored in quantum computing.
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