76 . 140 48.96 - 2. Phase angle o is the phase difference between the current i(t) and the voltage U(() of the sine wave source. In Experiment 8.2 you actually measure the phase angle @ between UR(() and U(t) rather than i(t ) and U(t) , why ?3. Based on the calculated phase angles theory or Pes in Table 3, draw a phasor diagram of the LCR circuit at each of the two frequencies: f = 500 Hz and 8000 Hz, and complete the following two statements. (a) At f = Hz, the voltage ( U ) across the signal generator leads the current (i). (b) At f = Hz, the voltage ( U ) across the signal generator lags the current (i). Note: Go through "Theory" in Exp. 8.1 before you draw the phasor diagram