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Electromagnetism Formula

What is Capacitance?

Capacitance measures how much charge a capacitor stores per volt of potential difference.

Formula: C = \frac{Q}{V}

Plain-English Meaning

Capacitance measures how much charge a capacitor stores per volt of potential difference.

Keep charge, field, potential, and current distinct. That single habit fixes a large fraction of electromagnetism errors.

Deeper Explanation

Capacitance measures how much charge a capacitor stores per volt of potential difference.

Worked Example

Problem: A capacitor stores 60 μC of charge at 12 V. Find its capacitance.

  • C = Q/V = 60×10⁻⁶ / 12 = 5×10⁻⁶ F = 5 μF

Result: 5 μF

At A Glance

Category: Electromagnetism

Levels covered:

Best use: Start with the formula meaning, then move to the worked example and quiz so the equation turns into a tool instead of a memorised line.