A high-voltage powerline operates at 500,000 V rms and carries an rms current of 500 A. If the resistance of the cable is 0.050 ?/km, what is the resistive power loss in 200 km of the powerline?
a. 250 kW
b. 500 kW
c. 1 megawatt
d. 2.5 megawatts
e. 250 megawatts
d
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a. inheritance b. genetics c. reproduction d. development e. sex
An ambulance is generating a siren sound at a frequency of 2,400 Hz. The velocity of sound is 345.0 m/s. If the ambulance is traveling at a velocity of 24.00 m/s toward the stationary observer, then what is the frequency of the siren perceived by the observer?
A. 2,579 Hz B. 2,540 Hz C. 2,525 Hz D. 2,500 Hz E. 2,480 Hz
Determine the rms current for the circuit.
A. 55 mA B. 77 mA C. 99 mA D. 0.19 A E. 61 mA
What parts of the EM spectrum are now able to be viewed in the universe?
What will be an ideal response?