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In a circuit with a 12 V battery and a 4 Ω resistor, what is the current flowing

Practice Questions

Q1
In a circuit with a 12 V battery and a 4 Ω resistor, what is the current flowing through the circuit?
  1. 3 A
  2. 2 A
  3. 4 A
  4. 1 A

Questions & Step-by-Step Solutions

In a circuit with a 12 V battery and a 4 Ω resistor, what is the current flowing through the circuit?
Correct Answer: 3 A
  • Step 1: Identify the voltage (V) from the battery, which is 12 volts.
  • Step 2: Identify the resistance (R) of the resistor, which is 4 ohms.
  • Step 3: Use Ohm's law formula, which is I = V / R, to find the current (I).
  • Step 4: Substitute the values into the formula: I = 12 V / 4 Ω.
  • Step 5: Calculate the result: 12 divided by 4 equals 3.
  • Step 6: Conclude that the current flowing through the circuit is 3 amperes (A).
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