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?
1A
2A
3A
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.