Question

In the circuit shown in the diagram below, two thick wires connect a 1.4 volt battery to a Nichrome (NiCr) wire. Each thick connecting wire is 17 cm long, and has a radius of 10 mm. The thick wires are made of copper, which has 8.36e+28 mobile electrons per cubic meter, and an electron mobility of 0.00434 (m/s)/(V/m). The Nichrome wire is 6 cm long, and has a radius of 3 mm. Nichrome has 9e+28 mobile electrons per cubic meter, and an electron mobility of 7e-05 (m/s)/(V/m). What is the magnitude of the electric field in the thick copper wire? V/m What is the magnitude of the electric field in the thin Nichrome wire? V/m

          In the circuit shown in the diagram below, two thick wires connect a 1.4 volt battery to a Nichrome (NiCr) wire. Each thick connecting wire is 17 cm long, and has a radius of 10 mm. The thick wires are made of copper, which has 8.36e+28 mobile electrons per cubic meter, and an electron mobility of 0.00434 (m/s)/(V/m). The Nichrome wire is 6 cm long, and has a radius of 3 mm. Nichrome has 9e+28 mobile electrons per cubic meter, and an electron mobility of 7e-05 (m/s)/(V/m).

What is the magnitude of the electric field in the thick copper wire?
V/m

What is the magnitude of the electric field in the thin Nichrome wire?
V/m

Show more…

In the circuit shown in the diagram below, two thick wires connect a 1.4 volt battery to a Nichrome (NiCr) wire. Each thick connecting wire is 17 cm long, and has a radius of 10 mm. The thick wires are made of copper, which has 8.36e+28 mobile electrons per cubic meter, and an electron mobility of 0.00434 (m/s)/(V/m). The Nichrome wire is 6 cm long, and has a radius of 3 mm. Nichrome has 9e+28 mobile electrons per cubic meter, and an electron mobility of 7e-05 (m/s)/(V/m).

What is the magnitude of the electric field in the thick copper wire?
V/m

What is the magnitude of the electric field in the thin Nichrome wire?
V/m

Added by Jeffrey E.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Nicholas Mogoi

08/09/2023

Step 1

We can use Ohm's law to find the resistance of each wire and then find the total resistance of the circuit. For the copper wire, the resistance is given by: $$R_{Cu} = \frac{\rho_{Cu} L_{Cu}}{A_{Cu}}$$ For the Nichrome wire, the resistance is given Show more…

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