1. For the circuit in Figure 1: a) Calculate the total impedance Ztot of the below circuit b) Calculate the total current Itot and branch currents I₁ and I₂. c) Calculate voltage U₁ over the inductance L₂ E=240V ≤ 0°, R₁ = 15 №, L₁= 120 mH, L₂ = 160 mH, ƒ= 50Hz (Answers Ztot 22.16 83.06 °, I₁= 6.37 A Z -90 °, I₂=4.58 A Z-73.38°) Present all values in polar form (x < yº) Draw the phasor diagram of the total current Itot. Figure 1. Itot 5 12 R₁ 42 U₁

A 43mH coil in series with a 1200 ohm resistor across a sine wave ac voltage source with a frequency of 6 kHz. The total impedance for the circuit is O 1620 46.5° ohm esc 2017 53.5° ohm 1200 53.5° ohm 2820 46.5° ohm ! 1 Q ← 2 W #3 C E $ 54 R G Search or type URL % 5 MacBook Pro T A 6 Y & 7 ☆ U * 8 + 1 ( 9 ( 0 ) 0 4) P + O = [ delete

a) Determine the total impedance of the circuit in polar form.