In the context of electric charge and circuits, which component provides $R$ (resistance) in an electric circuit?

• A. Capacitor
• B. Resistor
• C. Battery
• D. Inductor

Answer: (B)

Verified step by step guidance

1. Understand the concept of resistance (R) in an electric circuit: Resistance is a property that opposes the flow of electric current, causing electrical energy to be converted into heat or other forms of energy.
2. Identify the components listed: Capacitor, Resistor, Battery, and Inductor, and recall their primary functions in a circuit.
3. Recall that a capacitor stores electrical energy in an electric field and does not provide resistance in the traditional sense.
4. Recognize that a battery provides electromotive force (voltage) to drive current but does not inherently provide resistance.
5. Know that an inductor stores energy in a magnetic field and resists changes in current but is not primarily characterized by resistance; the component designed specifically to provide resistance is the resistor.