Electroplating uses electrolysis to coat one metal with another. In a copper-plating bath, copper ions with a charge of +2e move through the electrolyte from the copper anode to the cathode— the metal object to be plated. If the current through the system is 1.2 A, how many copper ions reach the cathode each second?

Q: In a given fluid, positive ions, each with 2 excess protons, move to the right at a steady rate of…

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Q: A copper wire has 8.48×1028 free electrons per m3. If the cross sectional area of the wire is 3x10-6…

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Q: In a given fluid, positive ions, each with 2 excess protons, move to the right at a steady rate of…

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Q: The quantity of charge q (in coulombs) that has passed through a surface of area 2 cm? varies with…

A: Current is given by at t = 6 s

Q: Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many…

A: Current in the light bulb is I=1.67 C2.00 s=0.835 A = 835 mA

Q: (A) 0 (B) mr2 E 920: The figure shows two connected wires that are made of the same material. The…

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Q: A spool of copper wire 290 m long and with a diameter of 0.480 mm is at 20.0°C. For copper, the…

A: Given value--- length = 290 m. diameter = 0.48 mm. initial temperature = 20 degree C.  resistivity…

Q: Silver is composed of 5.8 x 1028 free electrons per cubic meter. If a silver wire with a diameter of…

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Q: A piece of iron rebar on a construction site measures 2 cm in diameter and is 3m long. What…

A: The resistance can be found using R=LσA Where, σ is electrical conductivity of the material,L is…

Q: The quantity of charge through a conductor is modeled as Q = 4.00 C/s4t4 − 1.00Cs/t + 6.00 mC . What…

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Q: A spool of tungsten wire 320 m long and with a diameter of 0.480 mm is at 20.0°C. For tungsten, the…

A: part a and b are solved so with the help of this we will solve part c .

Q: Q20: The figure shows two connected wires that are made of the same material. The current entering…

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Q: Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many…

A: The charge is given as q=ne…

Q: In a given fluid, positive ions, each with 2 excess protons, move to the right at a steady rate of…

A: Current is defined as the rate of flow of charge. The direction of the current is in the opposite…

Q: In a given fluid, positive ions, each with 1 excess protons, move to the right at a steady rate of…

A: Given data: The number of ions moving right nr=2.9×1019 ion/min.  The number of ions moving left…

Q: Need help solving these problems!

A: Given:- 1a)current = o.7 A time = 1 min. Now, charge (q)= 42C

Q: Some airliners use wires of aluminum(resistivity 2.75×10−8 Ω ⋅m2.75×10−8 Ω ⋅m) rather than copper to…

A: a) The required electric field is, b) The required resistance is,

Q: The electric field of the material between two coaxial cables of radius 0.525 cm and 0.675 cm is…

A: Current density J= σ×E σ = conductivity E= electric field J = 5×10^10 × (2.58 / r^3)  Or

Q: How long does it take electrons to get from a car battery to the starting motor? Assume the current…

A: Given: The current is I = 310 A. Cross sectional area of wire is, The length of the wire is L =…

Q: Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many…

A:

Q: How long does it take electrons to get from a car battery to the starting motor? Assume the current…

A: Given data The current in the circuit is given as I = 340 A. The cross-sectional area is given as A…

Q: Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many…

A: Given: The amount of the charge that passes through the bulb is 2 s is 1.67 C.

Q: The quantity of charge q (in coulombs) that has passed through a surface of area 2.10 cm2 varies…

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Q: Q5. A typical wire for laboratory experiments is made of copper and has a radius 0.815 mm. Calculate…

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Q: How long does it take electrons to get from a car battery to the starting motor? Assume the current…

A: Time taken by electrons is,

Q: The quantity of charge q (in coulombs) that has passed through a surface of area 2.05 cm2 varies…

A: a) The instantaneous current (I) through the surface is the rate of change of charge (q) with time…

Q: The current in a wire varies with time (measured in seconds) as I = 31 A − (0.18 A/s2)t2. Determine…

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Q: 11. The quantity of charge q (in coulombs) that has passed through a surface varies with time…

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Q: The quantity of charge through a conductor is modeled as Q(t)=(4.7)t4+(−1.2)t+(6.8) C What is the…

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Q: In a given fluid, positive ions, each with 1 excess protons, move to the right at a steady rate of…

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Q: If we have a material with the same electrical properties in all directions, we define its…

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Q: Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many…

A: Current is given as I=Qt…

Q: What is the current if 25 C of charge passes through an iron in 8. s? C = 6.24 x 1018 q=lt

A: Given Charge, q=25C=25×6.24×1018=156×1018 Time, t=8s At a rate of one coulomb per second.…

Q: In an ionic solution, 5.0 x 1015 positive ions with charge +2e pass to the right each second while…

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Q: In a given fluid, positive ions, each with 1 excess protons, move to the right at a steady rate of…

A: We have n1=1.9×1019 positive ions each containing one excess proton i.e., charge q1=+e moving to the…

Q: An 18-gauge copper wire (p = 1.72x10-8 .m) has a diameter of 1.02 mm and a cross sectional area of…

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Q: The quantity of charge q (in coulombs) that has passed through a surface of area 2.05 cm2 varies…

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Q: 8. 15 moles of electrons are passing through a conducting wire within 2 mins. The current flowing…

A: Number of moles is equal to 15 Number of electron in 1 mole is equal to 6.022×10^23  Time= 2min

Q: A steady current of 2 mA flows through a wire. How much charge passed through the wire in three and…

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Q: The figure shows a 2.0-cm diameter roller that turns at 90 rpm. A 4.0-cm wide plastic film is being…

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Q: In a given fluid, positive ions, each with 2 excess protons, move to the right at a steady rate of…

A:

Q: In a given fluid, positive ions, each with 1 excess protons, move to the right at a steady rate of…

A:

Q: Suppose 1.67 Cof charge passes through the filament of a light bulb in 2.00 seconds. How many…

A: The current flowing through a circuit is defined as the ratio of the charge flowing through the…

Q: A spool of tungsten wire 320 m long and with a diameter of 0.480 mm is at 20.0°C. For tungsten, the…

A:

Q: Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many…

A: Data: Q = 1.67 C t = 2.00 s I = ?   Solution: The electric current is                           I =…

Q: QI: The length of copper wire with diameter (1mm), have a resistance of (1KN) and conductivity…

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Q: A spool of aluminum wire 290 m long and with a diameter of 0.360 mm is at 20.0°C. For aluminum, the…

A: Given: L=290md =0.360mm = 0.360*10-3 mT1 = 20°Cρo=2.82*10-8 Ωmα=3.90*10-3 °C-1I=0.600A

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.