For the network shown in figure #4, use mesh-current and nodal analyses to determine the total active power dissipated. 60/30º 50/60º 6Q 4.5 Ω 8 Ω 6Ω 49 ww m ww m ww 10 Ω 3 Ω =602 Figure #4 30/45º ww ΤΩ 10 Ω

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Question 13 For the circuit shown, the following mesh currents are given: IA =1.24271.2° A IB =0.45Z49.0° A Ic = 0.75Z150.2° A What is the value of the voltage VB? j5n + 20 VB 62- 45° V j4 N VA 240° V Vc 5230° V O 2.484- 108.8° V O 2.48471.2 V O 2.23/66.8° V O 2.23Z- 113.2° V

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Series-Parallel Circuit For the following circuit, determine: a) The total resistance RT b) The current IRI c) The current Ir6. d) The power consumed by R6.. . Ri 15 Ry 30s 15L 15 Rz 12v 30s2

An emergency power supply is required to provide a three-phase sinusoi- dal voltage source of 208 V (L-L) at a frequency of 400 Hz. The power is to be obtained from a battery consisting of cells in series, each cell hav- ing an internal voltage of 2.2 V and an internal resistance of 0.006 m. The load on the three-phase, 400-Hz system requires a fundamental fre- quency apparent power of 7.2 kVA at 0.9 power factor lagging. The in- ductance of the load is such that harmonic currents are negligible. How many cells should be connected in series to provide the required output? The switches may be regarded as ideal.

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Solve for Rc of Figure 42. 12 V Ic Rc RB VCE B=80 IB = 40 μA Reference: Boylestad, R. & Nashehky, L. (2013). Bectronic devices and circuit theory |11th ed.]. Upper Saddle River, New Jersey: Pearson Education Figure 42 1.5 k ohms 1.875 kohms 3.531 kohms 2.75 kohms Vc=6V

6:59 PM Mon Oct 12 A cdn.inst-fs-iad-prod.inscloudgate.net 3. IF THE VOLTAGE AT RESISTOR RX IS 12V, WHAT IS THE TOTAL CURRENT AND THE VOLTAGES AT THE 5KOHM AND 10KOHM RESISTORS AND THE VALUE OF RX IN OHMS? (VALUE 30%) 5Kn VRX=12V IT= VOLTAGE 5kQ= +. 24V 10KA VOLTAGE 10OK2= RESISTANCE ON RX=