Computing a dc current through the telephone handset

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Reference no: EM13138533

A telephone handset has a resistance of 600 ohm. It is connected to the local telephone exchange at a distance of 5 km by a twisted pair that has a loop resistance of 200 ohm per km. The telephone exchange has a 48.0 V battery that is connected to the twisted pair through a 400 ohm resistor. What is the DC current through the handset when it is off-hook?

Reference no: EM13138533

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