AP Physics C: E&M
13.5 Circuits with Resistors and Inductors (LR Circuits)
Three direct-current circuits, labeled Circuit X, Circuit Y, and Circuit Z, each consist of an ideal inductor and a resistor connected in series. The parameters of each circuit are shown in the table.
Which of the following correctly ranks the inductive time constants \(\tau_X\), \(\tau_Y\), and \(\tau_Z\) of the three circuits?
| Circuit | Inductance | Resistance |
|---|---|---|
| Circuit X | \(L\) | \(R\) |
| Circuit Y | \(2L\) | \(R\) |
| Circuit Z | \(2L\) | \(2R\) |
Which of the following correctly ranks the inductive time constants \(\tau_X\), \(\tau_Y\), and \(\tau_Z\) of the three circuits?
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