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Q10Q

Expert-verifiedFound in: Page 935

Book edition
10th Edition

Author(s)
David Halliday

Pages
1328 pages

ISBN
9781118230718

**Figure 31-24 shows three situations like those in Fig. 31-15. Is the driving angular frequency greater than, less than, or equal to the resonant angular frequency of the circuit in (a) situation 1, (b) situation 2, and (c)situation 3?**

- The angular frequency in situation 1 is less than the resonant angular frequency of the circuit.
- The angular frequency in situation 2 is equal to the resonant angular frequency of the circuit.
- The angular frequency in situation 3 is greater than the resonant angular frequency of the circuit.

Figure 31-24 shows three situations of frequencies.

**When the current leads the emf, then the angular frequency is less and vice versa. This case of current leading indicates flowing through a capacitor. If current lags the emf, this is when the current flows through an inductor.**

The current I leads the driving emf E, so angular frequency is less than the resonant frequency.

The current I and the driving emf E have the same phase difference, so angular frequency is equal to the resonant frequency.

The current I is larger than the driving emf E, so the angular frequency is greater than the resonant frequency.

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