What is the total current in a circuit with a 12V battery and three 4 ohm resist

Practice Questions

Q1
What is the total current in a circuit with a 12V battery and three 4 ohm resistors connected in series?
  1. 1A
  2. 2A
  3. 3A
  4. 4A

Questions & Step-by-Step Solutions

What is the total current in a circuit with a 12V battery and three 4 ohm resistors connected in series?
Correct Answer: 1A
  • Step 1: Identify the voltage of the battery, which is 12V.
  • Step 2: Identify the resistance of each resistor, which is 4 ohms.
  • Step 3: Since there are three resistors in series, add their resistances together: 4 ohms + 4 ohms + 4 ohms = 12 ohms.
  • Step 4: Use Ohm's Law to find the current. Ohm's Law states that Current (I) = Voltage (V) / Resistance (R).
  • Step 5: Substitute the values into the formula: I = 12V / 12 ohms.
  • Step 6: Calculate the current: 12V / 12 ohms = 1A.
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