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A circuit is constructed from two batteries and two wires, as shown in the diagram below.

Image for A circuit is constructed from two batteries and two wires, as shown in the diagram below. Each battery h

Each battery has an emf of 1.3 volts. Each wire is 27 cm long, and has a diameter of 0.0007 meters. The wires are made of a metal which has 7e+28 mobile electrons per cubic meter; the electron mobility is 5e-05 (m/s)/(V/m). A steady current runs through the circuit. The locations marked by "x" and labeled by a letter are in the interior of the wire.

1.What is the magnitude of the electric field at location F?

EF= ________ V/m

2.How many electrons per second enter the positive end of battery #2?
__________electrons/s

3.If the cross-sectional area of both wires were increased by a factor of 2, what would the magnitude of the electric field be at location F?
new value of EF = ________V/m

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Amana Rangarajan
Amana RangarajanLv9
23 Mar 2021

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