If a circuit has a 10V source and a total resistance of 5Ω, what is the total cu

Practice Questions

Q1
If a circuit has a 10V source and a total resistance of 5Ω, what is the total current in the circuit?
  1. 1A
  2. 2A
  3. 3A
  4. 4A

Questions & Step-by-Step Solutions

If a circuit has a 10V source and a total resistance of 5Ω, what is the total current in the circuit?
Correct Answer: 2A
  • Step 1: Identify the voltage source in the circuit, which is 10V.
  • Step 2: Identify the total resistance in the circuit, which is 5Ω.
  • Step 3: Recall Ohm's law, which states that current (I) is equal to voltage (V) divided by resistance (R).
  • Step 4: Plug the values into the formula: I = V / R.
  • Step 5: Substitute the known values: I = 10V / 5Ω.
  • Step 6: Calculate the result: 10 divided by 5 equals 2.
  • Step 7: Conclude that the total current in the circuit is 2A.
  • Ohm's Law – Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor.
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