Game3

I only need B, Dthank you so much

question 3

x Take Test: quiz 2 - Electromagnet x quizes - Electromagnetics I| واتساب X Inbox (4,028) - s2016298036.soh * P A bb.cas.edu.om/webapps/assessment/take/take.jsp?course assessment id=_12365_1&course_id=_18641 1&content_id= _209978 1&question_num_5.x=0&to. -> MUItipie AtempIS NOt allowea. InIS test can oniy pe taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 48 minutes, 26 seconds. v Question Completion Status: Close Window L> A Moving to another question will save this response. « Question 5 0.5 points Save Answer The frequency of an electromagnetic wave with a wavelength 2.75 x 10–8 m O None of these 1.1 Hz O 9.17 x 1015 Hz O 1.09 x 1016 Hz A Moving to another question will save this response. « » Close Window ENG A 4) A م اكتب هنا ل لبحث

ELECTRIC MACHINERY  do the (iii, iv v)

please solve the 2 questions, thanks sir

The diameter of an ACSR conductor is 1.162 inches. The steel core has 7 strands of diameter 0.1291 inches each. If Aluminum strands have the same diameter as that of a steel strand, the number of Aluminum strands is: O A. None of choices are correct O B. 36 O C. 74 O D. 54 O E. 45

Consider the mobile communication system shown in Figure 2. Assume the tower is providing mobile communication to a cellphone user. The height of the base station (BS) tower is 100m. Assume the elevation of the cellphone from the ground is 2 m, which is insignificant and can be ignored. Assume the smartphone needs at least -50dBm of received power from the base station in order to be able to communicate. Assume the transmit power at the base station is 40dBm, the transmitter and receiver gains are 5 and 2, respectively. The cell phone operates at 1900MHz carrier frequency. B5 h 100m BS_MS_D Figure 2 a) Calculate how far you can be away from the base station (i.e., BS_MS_D distance) and still be within communication range of the base station, i.e., be able to receive the signal sent from the BS. You may use link budget analysis discussed in class. What should be the transmit power of the BS to allow the range R = 21 and still be able to communicate with the BS? Calculate the Path Loss…

Which of the following statements regarding the cost structure of a wind farm are true? Select one or more: a. The turbine accounts for 40% of the total cost of an onshore wind farm. O b. About half of the total cost of an offshore wind farm consists of foundation, substation and cabling costs. c. Almost half of the total cost of a wind turbine is made up of the cost of a tower and blades.

1 Use the profile angle method to calculate the distance between collectors, d, to achieve zero shading at between 8:30 AM and 3:30 PM solar time on December 10. Then, use the Cartesian sun path chart for Windsor, Ontario, and determine when points A and C are shaded by points 1, 2 and 3. Each PV module (there are 32 shown) measures 1.8 m by 1 m. Use a tilt of 30°.

Solve it fast plz

Analyse several voltage and current situations in different loading scenarios in a simplified radial (transformer to consumption) medium-voltage power system example. There are only 2 nodes in the 35 kV line – node 0 from the 110/35 kV and node 1 with one consumer. The physical characteristics of the line and the loading scenarios are individualized for each student – please see the attached file Excel “WM9P3 Task1 data” for your particular data set.  Briefly reflect on the complexity of the calculations for known input or output voltage, as well as for fixed or voltage-dependent consumption in this simple power system model.  Analyse and discuss the sensitivity of the voltage drop [in % of amplitude and the degrees of phase] with respect to the current level [in %] and to the power factor.

Needs validation please 333

Voltages are represented by: e, = 20sinwt e2 = 30sin (wt ez = 40cos (wt +") e4 = -15sin wt es = -25cos (wt – ") Find the resultant instantaneous voltage using: (a) (b) (c) trigonometric identities component method complex method

Please answer in typing format solution please only Please answer all subparts is compulsory to answer in your Please I will like it please