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If a 9V battery is connected to a 3Ω resistor, what is the energy consumed in 10 seconds? (2023)

Practice Questions

1 question
Q1
If a 9V battery is connected to a 3Ω resistor, what is the energy consumed in 10 seconds? (2023)
  1. 30J
  2. 90J
  3. 60J
  4. 45J

Questions & Step-by-step Solutions

1 item
Q
Q: If a 9V battery is connected to a 3Ω resistor, what is the energy consumed in 10 seconds? (2023)
Solution: Power (P) = V²/R = 9²/3 = 27W. Energy (E) = P * t = 27W * 10s = 270J.
Steps: 0

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