An ac generator provides emf to a resistive load in a remote factory over a two-cable transmission line. At the factory a step-down transformer reduces the voltage from its (rms) transmission value V t to a much lower value that is safe and convenient for use in the factory. The transmission line resistance is 0.30 Ω/cable, and the power of the generator is 250 kW. If V t = 80 kV, what are (a) the voltage decrease Δ V along the transmission line and (b) the rate P d at which energy is dissipated in the line as thermal energy? If V t = 8.0 kV, what are (c) Δ V and (d) P d ? If V t = 0.80 kV, what are (e) Δ V and (f) P d ?
An ac generator provides emf to a resistive load in a remote factory over a two-cable transmission line. At the factory a step-down transformer reduces the voltage from its (rms) transmission value V t to a much lower value that is safe and convenient for use in the factory. The transmission line resistance is 0.30 Ω/cable, and the power of the generator is 250 kW. If V t = 80 kV, what are (a) the voltage decrease Δ V along the transmission line and (b) the rate P d at which energy is dissipated in the line as thermal energy? If V t = 8.0 kV, what are (c) Δ V and (d) P d ? If V t = 0.80 kV, what are (e) Δ V and (f) P d ?
An ac generator provides emf to a resistive load in a remote factory over a two-cable transmission line. At the factory a step-down transformer reduces the voltage from its (rms) transmission value Vt to a much lower value that is safe and convenient for use in the factory. The transmission line resistance is 0.30 Ω/cable, and the power of the generator is 250 kW. If Vt = 80 kV, what are (a) the voltage decrease ΔV along the transmission line and (b) the rate Pd at which energy is dissipated in the line as thermal energy? If Vt = 8.0 kV, what are (c) ΔV and (d) Pd? If Vt = 0.80 kV, what are (e) ΔV and (f) Pd?
Checkpoint 4
The figure shows four orientations of an electric di-
pole in an external electric field. Rank the orienta-
tions according to (a) the magnitude of the torque
on the dipole and (b) the potential energy of the di-
pole, greatest first.
(1)
(2)
E
(4)
What is integrated science.
What is fractional distillation
What is simple distillation
19:39 ·
C
Chegg
1 69%
✓
The compound beam is fixed at Ę and supported by rollers at A and B. There are pins at C and D. Take
F=1700 lb. (Figure 1)
Figure
800 lb
||-5-
F
600 lb
بتا
D
E
C
BO
10 ft 5 ft 4 ft-—— 6 ft — 5 ft-
Solved Part A The compound
beam is fixed at E and...
Hình ảnh có thể có bản quyền. Tìm hiểu thêm
Problem
A-12
% Chia sẻ
kip
800 lb
Truy cập )
D Lưu
of
C
600 lb
|-sa+ 10ft 5ft 4ft6ft
D
E
5 ft-
Trying
Cheaa
Những kết quả này có
hữu ích không?
There are pins at C and D To F-1200 Egue!)
Chegg
Solved The compound b...
Có Không ☑
|||
Chegg
10
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