A 3.00-m length of copper wire at 20 ∘C has a 1.20-m-long section with diameter 1.2 mm and a 1.80-m-long section with diameter 0.60 mm . There is a current of 3.0 mA in the 1.2 mm -diameter section.
A)What is the current in the 0.60 mm -diameter section?
B)What is the magnitude of E⃗ in the 1.2 mm -diameter section?
C)What is the magnitude of E⃗ in the 0.60 mm -diameter section?
D)What is the potential difference between the ends of the 3.00-m length of wire?
A 3.00-m length of copper wire at 20 ∘C has a 1.20-m-long section with diameter 1.2...
A 3.00 m length of copper wire at 20°C has a 1.20-m-long section with diameter 1.40 mm and a 1.80-m-long section with diameter 0.70 mm. There is a current of 2.3 mA in the 1.40-mm-diameter section. Part A What is the current in the 0.70-mm-diameter section? Express your answer in milliamperes. ΑΣΦ ? 12 = mA Submit Request Answer Part B What is the magnitude of Ē in the 1.40-mm-diameter section? Express your answer in volts per meter. ΜΠ ΑΣφ...
A 1.0 mm -diameter, 20 cm -long copper wire carries a 4.5 A current. What is the potential difference between the ends of the wire?
A 1.5 mm -diameter, 20 cm -long copper wire carries a 4.5 A current. What is the potential difference between the ends of the wire? in mV
A wire 3.66 m long and 6.77 mm in diameter has a resistance of 21.7 m?. A potential difference of 17.5 V is applied between the ends. (a) What is the current in amperes in the wire? (b) What is the magnitude of the current density? (c) Calculate the resistivity of the material of which the wire is made. (a) Number Units (b) Number Units (c) Number Units A wire 3.66 m long and 6.77 mm in diameter has a...
A 2.0-m length of wire is made by welding the end of a 120-cm-long silver wire to the end of an 80-cm-long copper wire. Each piece of wire is 0.60 mm in diameter. The wire is at room temperature, so the resistivities are as given in Table 25.1. A potential difference of 9.0 V is maintained between the ends of the 2.0-m composite wire.
A 17.0 m -long copper wire, 3.00 mm in diameter including insulation, is tightly wrapped in a single layer with adjacent coils touching, to form a solenoid of diameter 2.90 cm (outer edge). What is the length of the solenoid? What is the field at the center when the current in the wire is 17.0 A ?
A current of 1.82 A flows through a copper wire 1.75 m long and 1.10 mm in diameter. Find the potential difference between the ends of the wire.
A wire 3.07 m long and 8.24 mm in diameter has a resistance of 17.2 mΩ. A potential difference of 27.7 V is applied between the ends. (a) What is the current in amperes in the wire? (b) What is the magnitude of the current density? (c) Calculate the resistivity of the material of which the wire is made.
What is the resistance of a 5.9-m length of copper wire 1.2 mm in diameter? The resistivity of copper is 1.68×10−8Ω⋅m.
An aluminum bar 3.68 m long has a rectangular cross section 1.01 cm by 5.17 cm . a. What is it's resistance? (I got 1.987x10^-4 but the program says this is wrong) b. What is the length of a copper wire 1.50 mm in diameter having the same resistance? (I got 0.02041 but it also was wrong) A 14.0 gauge copper wire of diameter 1.628 mm carries a current of 11.0 mA. What is the potential difference across a 2.25...