Moderate

How much energy is converted in a resistor of 5 ohm carrying a current of 2.0 A after 10 seconds?

Correct answer: D. 200 J

  • A. 4.0 J
  • B. 25 J
  • C. 100 J
  • D. 200 J

Explanation

Explanation:The energy (E) dissipated in a resistor is given by the formula: E = I²Rt, where I is the current, R is the resistance, and t is the time.Substituting the given values: E = (2.0 A)² * (5 Ω) * (10 s) = 4 * 5 * 10 = 200 J.

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Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.

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