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What is the voltage drop across a 3 ohm resistor carrying a current of 2 A?

Practice Questions

Q1
What is the voltage drop across a 3 ohm resistor carrying a current of 2 A?
  1. 3 V
  2. 6 V
  3. 9 V
  4. 12 V

Questions & Step-by-Step Solutions

What is the voltage drop across a 3 ohm resistor carrying a current of 2 A?
Correct Answer: 6 V
  • Step 1: Identify the values given in the problem. We have a resistor with a resistance of 3 ohms and a current of 2 A.
  • Step 2: Recall Ohm's law, which states that voltage (V) is equal to current (I) multiplied by resistance (R). The formula is V = I * R.
  • Step 3: Substitute the values into the formula. Replace I with 2 A and R with 3 ohms: V = 2 A * 3 ohms.
  • Step 4: Calculate the voltage. Multiply 2 by 3 to get 6.
  • Step 5: State the final answer. The voltage drop across the 3 ohm resistor is 6 V.
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