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What is the power consumed by a device that operates at 120V and draws a current

Practice Questions

Q1
What is the power consumed by a device that operates at 120V and draws a current of 3A? (2021)
  1. 360 W
  2. 240 W
  3. 120 W
  4. 30 W

Questions & Step-by-Step Solutions

What is the power consumed by a device that operates at 120V and draws a current of 3A? (2021)
  • Step 1: Identify the voltage (V) of the device, which is 120 volts.
  • Step 2: Identify the current (I) drawn by the device, which is 3 amperes.
  • Step 3: Use the formula for power (P), which is P = V × I.
  • Step 4: Substitute the values into the formula: P = 120V × 3A.
  • Step 5: Calculate the result: 120 multiplied by 3 equals 360.
  • Step 6: Conclude that the power consumed by the device is 360 watts.
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