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What is the current through a 15Ω resistor connected to a 45V source? (2021)

Practice Questions

Q1
What is the current through a 15Ω resistor connected to a 45V source? (2021)
  1. 3A
  2. 2A
  3. 1A
  4. 4A

Questions & Step-by-Step Solutions

What is the current through a 15Ω resistor connected to a 45V source? (2021)
  • Step 1: Identify the values given in the problem. We have a voltage (V) of 45 volts and a resistance (R) of 15 ohms.
  • Step 2: Recall Ohm's law, which states that current (I) is equal to voltage (V) divided by resistance (R). The formula is I = V / R.
  • Step 3: Substitute the values into the formula. Replace V with 45 and R with 15: I = 45V / 15Ω.
  • Step 4: Perform the division. Calculate 45 divided by 15, which equals 3.
  • Step 5: State the result. The current (I) through the resistor is 3 amperes (A).
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