Which component is used to limit the amount of current flowing in a circuit?

Which component is used to limit the amount of current flowing in a circuit?

• A. Capacitor
• B. Generator
• C. Resistor
• D. Switch

Answer: (C)

The component that is used to limit the amount of current flowing in a circuit is a resistor. Resistors are specifically designed to provide resistance to the flow of electric current, and by doing so, they limit the current according to Ohm’s Law (V = I × R), where voltage (V) is equal to the current (I) times the resistance (R). By adjusting the resistance value, one can control how much current passes through a circuit. In contrast, a capacitor is used to store electrical energy temporarily and does not inherently limit current like a resistor does. A generator is a source of electrical power that converts mechanical energy into electrical energy and does not function to control current flow. A switch, on the other hand, is used to open or close a circuit, allowing or preventing current flow, but it does not provide a constant resistance in the same way that a resistor does. Therefore, the functionality and purpose of a resistor make it the correct choice for limiting current in a circuit.

The component that is used to limit the amount of current flowing in a circuit is a resistor. Resistors are specifically designed to provide resistance to the flow of electric current, and by doing so, they limit the current according to Ohm’s Law (V = I × R), where voltage (V) is equal to the current (I) times the resistance (R). By adjusting the resistance value, one can control how much current passes through a circuit.

In contrast, a capacitor is used to store electrical energy temporarily and does not inherently limit current like a resistor does. A generator is a source of electrical power that converts mechanical energy into electrical energy and does not function to control current flow. A switch, on the other hand, is used to open or close a circuit, allowing or preventing current flow, but it does not provide a constant resistance in the same way that a resistor does. Therefore, the functionality and purpose of a resistor make it the correct choice for limiting current in a circuit.