A circuit has a voltage of 12 volts and a resistance of 4 ohms. What is the curr
Practice Questions
Q1
A circuit has a voltage of 12 volts and a resistance of 4 ohms. What is the current flowing through the circuit?
3 A
4 A
2 A
1 A
Questions & Step-by-Step Solutions
A circuit has a voltage of 12 volts and a resistance of 4 ohms. What is the current flowing through the circuit?
Step 1: Identify the voltage in the circuit, which is given as 12 volts.
Step 2: Identify the resistance in the circuit, which is given as 4 ohms.
Step 3: Recall Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R).
Step 4: Write the formula: I = V / R.
Step 5: Substitute the values into the formula: I = 12 V / 4 Ω.
Step 6: Perform the division: 12 divided by 4 equals 3.
Step 7: Conclude that the current flowing through the circuit is 3 amperes (A).
Ohm's Law – Ohm's Law states that the current (I) flowing 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.
