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What is the power consumed by a device that operates at 120 volts and draws a cu

Practice Questions

Q1
What is the power consumed by a device that operates at 120 volts and draws a current of 3 amperes?
  1. 360 W
  2. 40 W
  3. 120 W
  4. 240 W

Questions & Step-by-Step Solutions

What is the power consumed by a device that operates at 120 volts and draws a current of 3 amperes?
  • 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 = 120 V * 3 A.
  • Step 5: Calculate the power: 120 multiplied by 3 equals 360.
  • Step 6: Conclude that the power consumed by the device is 360 watts.
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