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

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Question: What is the power consumed by a device that operates at 120 V and draws a current of 2 A?

Options:

  1. 240 W
  2. 60 W
  3. 120 W
  4. 30 W

Correct Answer: 240 W

Solution: 

Power (P) is calculated using the formula P = V * I. Therefore, P = 120 V * 2 A = 240 W.

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

Practice Questions

Q1
What is the power consumed by a device that operates at 120 V and draws a current of 2 A?
  1. 240 W
  2. 60 W
  3. 120 W
  4. 30 W

Questions & Step-by-Step Solutions

What is the power consumed by a device that operates at 120 V and draws a current of 2 A?
  • 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 2 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 * 2 A.
  • Step 5: Calculate the power: P = 240 watts.
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