Task id12456
From a generator with EMF e=250 V and internal resistance r=0.1 Ohm, it is necessary to extend a two-wire line with a length of l=100 m to the consumer. What mass of aluminum will be used to make the line if the consumer’s power is P=22 kW, and it is designed for voltage U=220 V? Resistivity of aluminum p=2.8•10-8 Ohm•m. Aluminum density d=2.7 g/cm.
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