39. According to Figure 2, does ω0 vary with R ?
Answer and Explanation
Your Answer is
Correct Answer is D
Explanation
Look at figure 2, when the value of R is 10, 30, 100, ω0 is 1.0, so the value of R has no effect on ω0 , select No
Passage VII
An RCL circuit contains an alternating current (AC) power supply, a resistor having a resistance R, a capacitor having a capacitance C, and an inductor having an inductance L (see Figure 1).
The capacitor and inductor each possess impedance, a type of electrical resistance. The angular frequency of the current, ω, is a measure of the number of times each second that the current reverses direction.
Figure 2 shows, for specific values of C, L, and average voltage, V, how the average current, I, varies with ω and with R.
Figure 2 adapted from David Halliday and Robert Resnick, Physics, Part 2, 3rd ed. ©1978 by John Wiley and Sons, Inc.
For a given R, the peak average current, Imax, occurs at the resonant angular frequency, ω0 .
Figure 3 shows how ω0 varies with L and C.
