Resistance is

Resistance is

• A. A source of voltage
• B. The reason for a reduction in current flow
• C. A measure of temperature
• D. The energy stored in a capacitor

Answer: (B)

In circuits, resistance is the property that limits how much current can flow for a given voltage. This is why it’s the reason current flow is reduced when resistance is higher. According to Ohm’s law, current equals voltage divided by resistance, so raising resistance while keeping voltage the same lowers the current. Resistance is not a source of voltage and doesn’t push current into a circuit. It isn’t a measure of temperature, although temperature can affect resistance in materials. And it isn’t the energy stored in a capacitor, which is stored in the electric field of the capacitor. In automotive wiring and lighting, resistance helps regulate how much current flows and can dissipate energy as heat, influencing performance and safety.

In circuits, resistance is the property that limits how much current can flow for a given voltage. This is why it’s the reason current flow is reduced when resistance is higher. According to Ohm’s law, current equals voltage divided by resistance, so raising resistance while keeping voltage the same lowers the current. Resistance is not a source of voltage and doesn’t push current into a circuit. It isn’t a measure of temperature, although temperature can affect resistance in materials. And it isn’t the energy stored in a capacitor, which is stored in the electric field of the capacitor. In automotive wiring and lighting, resistance helps regulate how much current flows and can dissipate energy as heat, influencing performance and safety.