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1-phase 2-winding transformer is rated 30 kVA, 360/90 V, 60 Hz. A source connected to the 360-V winding supplies an impedance load connected to the 120-V winding. The load absorbs 15 kVA at 0.8 p.f. lagging when the load voltage is 118 V. Assume that the transformer is ideal and calculate the following:
a. The voltage across the 360-V winding.
b. The load impedance
c. The load impedance referred to the 360-V winding
d. The real and reactive power supplied to the 360-V winding
Rain affects the downlink from the satellite and the overall CNR ratio in the receiver falls by 6.0 dB to 13.0 dB. What is the bit error rate and the time between errors now?
A single-phase, 60-Hz power will be transmitted through the transmission line Each subconductor's radius is 10 cm. There are two configurations, the first one is setting subconductors A and B as a bundle, and C and D as another bundle
Consider the Norton equivalent circuit with respect to terminals 'a' and 'b' for the circuit shown below. Suppose that Ro is given as 10 . The Norton equivalent current must be zero because there are no independent sources.
consider the following two first-order transfer functions H1 (z) = z + b/z + a , a = 0.3, b = - 0.4 H2(z) = bz + 1/z + a , a = 0.3, b = - 0.4 (a) draw the pole-zero plot for both transfer function H1(z) and H2(z)
A 60 Hz, three-phase, transposed transmission line has the following parameters: Z = 13.114+ j52.952, Y = j0.311/1000. The sending-end line-to-line voltage is 161 kV. The total receiving-end load is represented by ZL =143 with an angle
Suppose host A and the DHCP server are separated by 2 kilometers and are connected by a direct link of R = 2 Mbps. Suppose the propagation speed over the link is 2.5×108 meters/sec. Neglecting the processing and queuing delays and assuming each pa..
Two generators are connected in parallel to the same bus bar and each has an inductive reactance of 10% on rating. Generator 1 is rated 2,500 kVA and 2.4 kV, and generator 2 is rated 5,000 kVA and 2.4 kV.
Describe why the intrinsic carrier concentration changes with temperature. This would include from very cold temperatures to 600K+ temperatures. Why does an extrinsic semiconductor become intrinsic above ~ 500K
Let x[n], y[n] and w[n] denote three finite-lenght sequences of lenghts N, M, and L, respectively with the first sample of each sequence occuring at n=0. What is the lenght of the sequence x[n] * y[n] * w[n]
A wafer 100mm in diameter is mounted in an electron-beam evaporation system in which the spherical radius is 40cm. Use Eq. 6.7 to estimate the worst-case varation in film thickness between the center and edges
Design a 2-bit counter that, when f = 1, counts in the repeating sequence: 0, 2, 3, and when f = 0, counts in the reverse direction. Use T flip-flops. (a) Construct a state diagram or state table.
Design a sequential system to continuously output your set of eight different digits (01275438) in binary at the rate of one digit per clock pulse.
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