A power station delivers 740 kW of power at 12,000 V to a factory through wires...
A power station delivers 740 kW of power at 12,000 V to a factory through wires with total resistance 3.6 Ω .
How much less power is wasted if the electricity is delivered at 50,000 V rather than 12,000 V?
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A power station delivers 740 kW of power at 12,000 V to a
factory through wires...
A power station delivers 860 kW of power at 12,000 V to a factory through wires...
A power station delivers 860 kW of power at 12,000 V to a
factory through wires with total resistance 4.0 Ω .
How much less power is wasted if the electricity is delivered at 50,000 V rather than 12,000 V? Express your answer using two significant figures. VO ΑΣΦ difference
The graph below shows data for five different resistors (identified by their color). Determine the resistance...
The graph below shows data for five different resistors
(identified by their color). Determine the resistance of each
resistor.
Ask Your Teacher 8. + 10 points Current: V vs I Graph My Notes The graph below shows data for five different resistors (identified by their color). Determine the resistance of each resistor VOLTAGE vs. CURRENT GRAPH V (V) 1000+ Ω A.) Rorange= 800 B.) Rgreen = 600 C.) Rblue Ω 400 D.) Rred 200 Ω E.) Rpurple I (A) 50...
A length of aluminum wire is connected to a precision 10.00-V power supply, and a current...
A length of aluminum wire is connected to a precision 10.00-V power supply, and a current of 0.4212 A is precisely measured at 27.0 ∘C. The wire is placed in a new environment of unknown temperature where the measured current is 0.3804 A . --------------------------------------------------------------------------------------------------------------------------------------------------- For some applications, it is important that the value of a resistance not change with temperature. For example, suppose you made a 4.00 −kΩ−kΩ resistor from a carbon resistor and a Nichrome wire-wound resistor connected...
2. (15 pts) The reason why high voltage in power grid is used to transmit electric...
2. (15 pts) The reason why high voltage in power grid is used to transmit electric power is that it can reduce power waste along the transmission lines known as transmission loss. Suppose that a power station delivers 1,000 kW of power at 10,000 V to a city through wires with total resistance 3.0 22. How much power can be saved if the same power is delivered at 50,000 V?
An electric power station is producing 210 kW of power that is to be sent to...
An electric power station is producing 210 kW of power that is to be sent to a small town located 34.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of length of 0.40 Ω/km. Find the power lost in heating the wires if the voltage is stepped up from 1.20 kV to 30.0 kV using an ideal transformer. ANS IS NOT 0.6664 kW Ans in kW
1. A renewable energy system delivers 120 kW of three-phase power at 400 V (line-line) to...
1. A renewable energy system delivers 120 kW of three-phase power at 400 V (line-line) to a load with a 0.9 lagging power factor. If each power line has a resistance of R = 0.03 Ω and reactance of X = 0.04 Ω, determine the sending end voltage (line-line) of the three-phase power line connected to the renewable energy system for supplying power to the load. 2. A network service operator found that the voltage rise in a network due...
An offshore wind turbine delivers power to a load via a submarine cable 10 km long....
An offshore wind turbine delivers power to a load via a submarine cable 10 km long. The voltage of the turbine’s generator is 10,000 VDC, the resistance per unit length of the cable is 0.0001 Ω/m and the total resistance of load is 10 Ω. i) How much power is delivered to the load, MW? ii) How much power is lost in the cable, MW ? (Assume everything is DC)
Suppose a power station is located 50 miles from a power plant and electricity is transported...
Suppose a power station is located 50 miles from a power plant and electricity is transported via cables that have an internal resistance of 2 Ω / mile. Thanks to a transformer, the power dissipated across this distance is only 178 W. Power output of the transformer is 400 kW. If input at the power plant is supplied through a 100 A current, what is the ratio of the number of turns in the secondary coil to the number of...
Radio station KNAU’s effective radiative power (a measure of how much radio energy it delivers to...
Radio station KNAU’s effective radiative power (a measure of how much radio energy it delivers to its listening area) is 100 kW. It broadcasts at 88.7 MHz. Suppose KNAU had a spigot that poured out water molecules as quickly as its antenna pours out photons. How many liters/second of water would it produce?
Suppose 55 kW is to be transmitted over two 0.150 Ω lines. Estimate how much power...
Suppose 55 kW is to be transmitted over two 0.150 Ω lines. Estimate how much power is saved if the voltage is stepped up from 160 V to 1600 V and then down again, rather than simply transmitting at 160 V . Assume the transformers are each 99% efficient. Psaved = __________kW
A power station delivers 860 kW of power at 12,000 V to a
factory through wires with total resistance 4.0 Ω .
How much less power is wasted if the electricity is delivered at 50,000 V rather than 12,000 V? Express your answer using two significant figures. VO ΑΣΦ difference
The graph below shows data for five different resistors
(identified by their color). Determine the resistance of each
resistor.
Ask Your Teacher 8. + 10 points Current: V vs I Graph My Notes The graph below shows data for five different resistors (identified by their color). Determine the resistance of each resistor VOLTAGE vs. CURRENT GRAPH V (V) 1000+ Ω A.) Rorange= 800 B.) Rgreen = 600 C.) Rblue Ω 400 D.) Rred 200 Ω E.) Rpurple I (A) 50...
2. (15 pts) The reason why high voltage in power grid is used to transmit electric power is that it can reduce power waste along the transmission lines known as transmission loss. Suppose that a power station delivers 1,000 kW of power at 10,000 V to a city through wires with total resistance 3.0 22. How much power can be saved if the same power is delivered at 50,000 V?
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