Passage IV
Figure 1 is a diagram of an RLC circuit. The circuit has a power supply and 3 components: a resistor (R), an inductor (L), and a capacitor (C).
Electric current can flow through the circuit either clockwise (positive current) or counterclockwise (negative current). Figure 2 shows how the electric current in the circuit, I (in amperes, A), and the power supply voltage, Vs (in volts, V), both changed during a 20-millisecond (msec) time interval.
Figure 3 shows how the voltages across the components—VR, VL, and VC, respectively—each changed during the same 20 msec time interval.
22. A period is the time required for a wave to complete one full cycle. Based on Figure 3, the period for VL was:
Your Answer is
Correct Answer is H
Explanation
Period is the distance from one peak to another. According to the waveform of VL in figure 3, it can be seen that the period is 20 msec