(b) 2 (a) (b) What will happen to the impedance if the inductance is larger? What will happen to the phase angle in this experiment if the frequency increases? What will happen to the phase angle if the inductance is larger? Compute the percent difference between the computed phase angle and the method 1 phase angle measurement. 4. From the data in Table 27-2 and Table 27-3 express the impedance of the circuit in both polar and rectangular form. 5. The critical frequency for an RL circuit occurs at the frequency at which the resistance is equal to the inductive reactance. That is, R = X. Since X, =2fL for an inductor, it can be easily shown that the critical frequency for an RL circuit is R fCRIT 2L 6. Compute the critical frequency for this experiment. What is the phase between V, and V, at the critical frequency? fCRIT = A series RL circuit contains a 100 2 resistor and a 1.0 H inductor and is operating at a frequency of 60 Hz. If 3.0 V are across the resistor, compute: (a) (b) the current in the inductor the inductive reactance XL the voltage across the inductor, VL the source voltage, Vs- (c) (d) (e) the phase angle between V and Vs- ATA: Table 27-1 Listed Measured Table 27-2 (S=25 kHz) Component Value Value VR VL 1 XL ZT L₁ 100 mH 99.7 1.6V 2.stv.16mA 15718.6 R₁ 10 kn 9,95k 7(Phasor Drawings): Plot 27-1 Table 27-3 (b) Method 2 8 41-100mH Phase Angle Computed Phase Angle e Measured Time Period Difference Method 1 T Δε 8 575 40s 105 261 90° 70