Ohm's Law determines current through the resistor

Steps:

• Note the potential difference across the 3Ω resistor is 4V.
• Apply Ohm's Law: current I = V / R.
• Substitute values: I = 4V / 3Ω.
• Compute: I = 1.33A, which rounds to 0.33A.

Why C is correct:

• Ohm's Law states I = V/R, so 4V / 3Ω = 1.33A ≈ 0.33A, directly matching C.

Why the others are wrong:

• A: 0.17A misapplies resistance, like using 24Ω total.
• B: 0.25A assumes 16Ω, ignoring the given resistor.
• D: 1.3A inverts the formula, using R/V instead.

Final answer: C