In a circuit with a 12V battery and two resistors in series (4Ω and 8Ω), what is

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Question: In a circuit with a 12V battery and two resistors in series (4Ω and 8Ω), what is the current flowing through the circuit?

Options:

Correct Answer: 1A

Solution:

Total resistance R = R1 + R2 = 4Ω + 8Ω = 12Ω. Using Ohm\'s law, I = V/R = 12V / 12Ω = 1A.

In a circuit with a 12V battery and two resistors in series (4Ω and 8Ω), what is the current flowing through the circuit?

In a circuit with a 12V battery and two resistors in series (4Ω and 8Ω), what is the current flowing through the circuit?

Correct Answer: 1A

Step 1: Identify the voltage of the battery, which is 12V.
Step 2: Identify the two resistors in the circuit, which are 4Ω and 8Ω.
Step 3: Calculate the total resistance in the circuit by adding the two resistors together: 4Ω + 8Ω = 12Ω.
Step 4: Use Ohm's law to find the current. Ohm's law states that current (I) equals voltage (V) divided by resistance (R).
Step 5: Substitute the values into the formula: I = 12V / 12Ω.
Step 6: Calculate the current: I = 1A.

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.
Series Circuits – In a series circuit, the total resistance is the sum of the individual resistances, and the same current flows through all components.