equivalent impedance

Two impedances are connected in parallel across a 220-volt source. If Z1= 4 cis (30) and Z2 = 5 cis (60) ohms. Find the equivalent admittance ( Siemen ) of the circuit. O 0.435 cis(- 43.3) O 2.3 cis (43.3) O 0.835 cis (-53.3) O 0.835cis (53.3)

What is the ripple voltage in the recufier circuit given below. (Assume that V13V, f-50 Hz, R-120 C 40 mV)? 22V O05V OCT5V 18 Vsino C

Two impedances, Z1 = 2+j6 N and Z2 = 6-j12 N are connected in series with a 220-V 60-Hz supply. At what frequency will the circuit act as a purely resistive load? O 84.85 Hz O 116.62 Hz O 82.46 Hz O 120 Hz

Please show you detailed solution Number 10 A voltage of 250 volts at 50 Hz is impressed on a circuit having a 60-ohm resistor, 35-?F capacitor, and a 0.25-henry inductor in series. Determine power factor. A. 0.979 C. 0.924 B. 0.862 D. 0.707

Please help with parts d. through f.

Consider the following transformer circuit assuming an ideal transformer. In this circuit the signal generator will provide a 10-Volt peak-to-peak sinusoidal signal at a frequency of 1.0 kHz. Assume that L₁ = 0.65 H, L2 = 0.00492 H (=4.92 mH) and that the coupling constant = 0.99925. VG1 + R1 1k N1:N2 11.5:1 12 + + V1 N1 N2 V2 R2 8.2 1) Find the following using the theory presented in the prelab reading: a) Start with Equations (2) of the prelab reading and show that the input impedance to an ideal transformer is given by the equation for Z1 (= V₁/I1) in Equations (4) of the prelab reading. Equations (2) are: V₁ = j@L₁I₁ +j@MI2 and V₂ = j@MI₁ +j@L₂I 2 The equation for the input impedance is: Z1 = = = jwL₁ + 11 (WM)² jwL2+ZL b) Assuming that ZL is a real impedance, find the equations for the real and imaginary parts of Z1. c) Use your equations from part (b) to calculate the value of the input impedance (Z1) at an operating frequency of 200 Hz. Assume that the load impedance is 8.2…

1. In the transformer circuit below, determine the value of Vp and Ip to maintain a voltage of 230V across load Z which is composed of a parallel combination of a 100W, 230V lamp (purely resistive) and a 10µF capacitor. The system is at 60H2 frequency. Ip 1.20 j7.50 2.40 j3.22 Vp 3002 j4002 Z 23020°V

solve the circuit to determine the following parameters: active power P, reactive power Q, and apparent power S in each phase of the circuit, as well as the total active power Pt, the total reactive power Qt and the total apparent power St

The high-voltage side of a step-down transformerhas 800 turns, and the low-voltage side has 100 turns. A voltage of 240 VAC is applied to the high side, andthe load impedance is 3Ω  (low side). Finda. The secondary voltage and current.b. The primary current.c. The primary input impedance from the ratio ofprimary voltage to current.d. The primary input impedance.