Multiple Choice
A circuit consists of a battery connected in series with a resistor. What is the current flowing through the resistor?
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27. Resistors & DC Circuits
Intro to Current
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A simple circuit consists of a battery connected in series with a resistor. What is the current in this circuit?
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Verified step by step guidance1
Identify the given quantities: the voltage of the battery \(V = 12\ \text{V}\) and the resistance of the resistor \(R = 4\ \Omega\).
Recall Ohm's Law, which relates voltage (\(V\)), current (\(I\)), and resistance (\(R\)) in a circuit: \(V = I \times R\).
Rearrange Ohm's Law to solve for the current \(I\): \(I = \frac{V}{R}\).
Substitute the known values into the equation: \(I = \frac{12}{4}\).
Express the current \(I\) as the quotient of the voltage and resistance, which gives the current flowing through the circuit.
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