Physics 5054 · O Level · Electrical current

Electrical current — practice question

A defibrillator is a piece of equipment used to deliver an electric shock to a patient’s heart. It delivers an electric shock with energy $240\ \text{J}$ at an average voltage of $2000\ \text{V}$ over $10\ \text{ms}$. What is the average current it supplies?

  • A$0.012\ \text{A}$
  • B$1.2\ \text{A}$
  • C$12\ \text{A}$
  • D$120\ \text{A}$

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