Question

8 in rl series circuits, ( v_r ) and ( v_l )
a are at right angles
b are 180 degrees out of phase
c are 270 degrees out of phase
d are in phase

Explanation:

In an RL series circuit, the voltage across the resistor (\(V_R\)) is in - phase with the current, and the voltage across the inductor (\(V_L\)) leads the current by \(90^{\circ}\). So, \(V_R\) and \(V_L\) are at right - angles (or \(90^{\circ}\) out of phase) with each other.

Answer:

A. are at right angles