20A_El_Reson

# 20A_El_Reson - INDIANA UNIVERSITY, DEPARTMENT OF PHYSICS,...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: INDIANA UNIVERSITY, DEPARTMENT OF PHYSICS, P309 LABORATORY Laboratory #20A: Electrical Resonance Goal: Study the phenomenon of electrical resonance; know some of the conditions under which resonance occurs; quality factor Q Equipment: non-polar capacitor (0.001 µ F), inductance, several resistors, sine-wave generator, and oscilloscope. (A) Introduction A dramatic feature of ac circuits is resonance . Inductive reactance X L = ω L increases as the frequency is increased, but capacitive reactance X C = –1/ ω C decreases with higher frequencies. Because of these opposite characteristics, for any LC combination there is a frequency at which X L equals X C , as one increases and the other decreases. This case of equal is called resonance , and the circuit is then a resonant circuit . Figure 1: Series RLC circuit. For a series RLC circuit, as shown in Fig. 1, the total impedance Z , the phase angle ϕ , the current i , the output voltage V out and the gain G are: C j L j R Z ω ω − +...
View Full Document

## This note was uploaded on 01/20/2012 for the course P 309 taught by Professor Urheim during the Spring '11 term at Indiana.

### Page1 / 3

20A_El_Reson - INDIANA UNIVERSITY, DEPARTMENT OF PHYSICS,...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online