OCR G485 Module 2

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Capacitors.

Capacitance is defined as the charge stored per unit potential difference.

One Farad is one coulomb per volt.

The energy stored by the capacitor is the area under the graph.

Exponential decays.

time constant = CR

Uses for capacitors.

Capacitors can supply back-up power to prevent data loss in a computer when power cuts out briefly.

Capacitor microphones.

  • One plate of a capacitor in the…

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