4.42 Use the mesh-current method to find the power developed in the dependent voltage source in the circuit in Fig. P4.42.

a. Find the node voltages v1, v2, and vy in the circuit in Fig. P4.21O. b. Find the total power dissipated in the circuit. Figure P4.21 50 10 2 350 5 i, v 20 2 v 40 N vs 96 V 11.5 i

PAPICE Use the node-voltage method to calculate the power delivered by the dependent voltage source in the circuit in Fig. P4.170. MULTISIM Figure P4.17 10 Ω 30 Ω 160 V 100 2 150 i. 20 Ω

4.1 Use superposition to determine the voltage V in the circuit below. The current U is an arbitrary value. 20 www + U ww 30 www 6.Q 1.0 ww 6V 4.2 For the circuit of problem 1, determine an input-output relationship between the current U and the voltage V. Plot the relationship between U and V, using U as the independent variable (e..g. U is on the horizontal axis.) For the circuit of problem 1, replace everything but the current source with its Thevenin equivalent circuit. Replace the current source in your Thevenin circuit and determine the input-output relationship between the current U and the voltage V. Does your result agree with the input- output relation you obtained in problem 2?

4.52 plz

Use superposition to solve for i, and v, in the circuit in Fig. P4.93. Figure P4.93 + 30 Ω 104 40 Ω 18 A 135 V v Σ 60 Ω : + io 20 Ω 80 Ω {25 Ω

Determine the voltage regulation of a step-down transformer whose parameters are given in Exercise 4.4 at full load and 0.8 pf leading. What is the full-load efficiency? Use exact equivalent circuit.   Excercise 4.4: A 2.4-kVA, 2400/240-V, 50-Hz, step-down transformer has the following parameters: R, = 1.5 a, X, = 2.5 R, R, = 0.02 a, X, = 0.03 Q, R,, = 6 kR, and X,, = 8 kR. It is operating at 80% of its load at unity power factor. Using the exact equivalent circuit embodying the ideal transformer, determine the efficiency of the transformer. Also sketch its phasor diagram

Please expalin how to solve this using node voltage method, please expalin how you stablish how many nodes this problem has thanks

Circuits 1 HW 4 Q6

Find the voltage ?? in the circuit