Question

1. the basis for an rl filter is

inductive reactance

resistance

voltage

current

Explanation:

An RL filter (Resistor - Inductor filter) operates based on the property of inductive reactance. Inductive reactance \(X_L = 2\pi fL\) (where \(f\) is the frequency of the alternating current and \(L\) is the inductance) changes with frequency. In an RL filter, the inductor's reactance affects the filtering action (e.g., in a low - pass RL filter, at high frequencies, the inductive reactance is high, blocking high - frequency signals). Resistance (option b) is a property of the resistor in the RL circuit but not the basis of the filtering action. Voltage (option c) and current (option d) are electrical quantities that are affected by the filter but not the fundamental basis of the RL filter's operation.

Answer:

A. inductive reactance