Question: A 12V battery is connected to a resistor of 4Ω. What is the current flowing through the circuit? (2022)
Options:
2A
3A
4A
1A
Correct Answer: 2A
Exam Year: 2022
Solution:
Using Ohm\'s law, I = V/R = 12V / 4Ω = 3A.
A 12V battery is connected to a resistor of 4Ω. What is the current flowing thro
Practice Questions
Q1
A 12V battery is connected to a resistor of 4Ω. What is the current flowing through the circuit? (2022)
2A
3A
4A
1A
Questions & Step-by-Step Solutions
A 12V battery is connected to a resistor of 4Ω. What is the current flowing through the circuit? (2022)
Step 1: Identify the voltage of the battery. In this case, it is 12V.
Step 2: Identify the resistance of the resistor. Here, it is 4Ω.
Step 3: Use Ohm's law formula, which is I = V / R, where I is the current, V is the voltage, and R is the resistance.
Step 4: Substitute the values into the formula: I = 12V / 4Ω.
Step 5: Calculate the current: 12 divided by 4 equals 3.
Step 6: Conclude that the current flowing through the circuit is 3A.
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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