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What is the power consumed by a device that operates at 12 volts and draws a cur

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Question: What is the power consumed by a device that operates at 12 volts and draws a current of 2 amperes? (2020)

Options:

  1. 24 W
  2. 12 W
  3. 6 W
  4. 48 W

Correct Answer: 24 W

Exam Year: 2020

Solution: 

Power (P) is given by P = V * I. Thus, P = 12 V * 2 A = 24 W.

What is the power consumed by a device that operates at 12 volts and draws a cur

Practice Questions

Q1
What is the power consumed by a device that operates at 12 volts and draws a current of 2 amperes? (2020)
  1. 24 W
  2. 12 W
  3. 6 W
  4. 48 W

Questions & Step-by-Step Solutions

What is the power consumed by a device that operates at 12 volts and draws a current of 2 amperes? (2020)
  • Step 1: Identify the voltage (V) of the device, which is 12 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 = 12 V * 2 A.
  • Step 5: Calculate the power: 12 multiplied by 2 equals 24.
  • Step 6: Conclude that the power consumed by the device is 24 watts.
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