If 3.25 × 10−3 kg of gold is deposited on the negative electrode of an electrolytic cell in a period of 2.78 h, what is the current in the cell during that period? Assume the gold ions carry one elementary unit of positive charge

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A: we know current density J =I/A where I is amount of current flowing =2.60 A A = area of cross…

Q: A conductor has a cross-sectional area of 2.3×106 m² and the number of free electrons per unit…

A: Cross-sectional area is A = 2.3×10-6 m2 Electron density is n = 8.5×1028 electron/m3 Current, I =…

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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: What current (in A) must be produced by a 12.0 V battery-operated bottle warmer in order to heat…

A: Mass of glass = 70 g Mass of baby formula = 200 gMass of aluminum = 350 g Initial temperature = 20oC…

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Q: If a metallic wire of cross sectional area 4.0 x 10-6 m2 carries a current of 6.0 A and has a mobile…

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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 current supplied to an air conditioner unit is 2.08 amps. The air conditioner is wired using a…

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Q: If 4.00 ✕ 10−3 kg of gold is deposited on the negative electrode of an electrolytic cell in a period…

A: Given - Mass of gold deposited , m = 4.00 x 10-3 kg = 4.00 g time taken for deposition of gold , t…

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: In an electrochemical cell, the magnitude of the current passing between the electrodes is equal to…

A: Given Charge arrives at the negative electrode is q1=6.49×10-3 C Charge arrives at the positive…

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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: 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: The quantity of charge q (in coulombs) that has passed through a surface of area 2.00 cm? varies…

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Q: A high-voltage copper transmission line with a diameter of 1.40 cm and a length of 120 km carries a…

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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: When a current flows in an aluminum wire of diameter 2.83 mm, the drift speed of the conduction…

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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: An iron wire has a cross-sectional area equal to 4.00 x 10-6 m2. Carry out the following steps to…

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Q: In a given fluid, positive ions, each with two excess protons, move towards right at a steady rate…

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Q: A cylindrical resistor of length a, circular cross-sectional area of radius a, and resistivity…

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Q: An iron wire is used to determine the melting point of material X. The resistance of the iron wire…

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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: What is the value of current if a 1000 C charge flows in a conductor over a period of 5 minutes. O…

A: Given Data :  The charge flow in the conductor is Q = 1000 Coulomb  Total time t = 5 minutes = 300…

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

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Q: A conductor has a cross-sectional area of 2.3×10-6 m² and the number of free electrons per unit…

A: The given values are, A=2.3×10-6 m2n=8.5×1028 /m3I=12.3 AQ=1.6×1019 C

Q: What color code corresponds to a resistance of 234x10 5 10% with a temperature coefficient of…

A: Value of Band 1 is 2 (Red) Value of Band 2 is 3 (Orange) Value of Band 3 is 4 (Yellow)  Value of…

Q: The time variation of the charge passing by a conductor is given by q(t)=21+2t, where q is given in…

A: Solution

Q: If 3.50 ✕ 10−3 kg of gold is deposited on the negative electrode of an electrolytic cell in a period…

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Q: If 3.75 x 10-3 kg of gold is deposited on the negative electrode of an electrolytic cell in a period…

A: Given data: Mass of gold, m=3.75×10-3kg Time period, t=2.99 h=2.99×3600 s=1.1×104s Known data: One…

Q: A current density of 8.50 x 10-13 A/m2 exists in the atmosphere at a location where the electric…

A: given that  current density is 8.50 x 10^-13 A/m2 and electric field is 176 V/m.

Q: Calculate the drift velocity of electrons inside an aluminum wire that has a diameter of 2.053 mm…

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Q: A 14-gauge copper wire has a diameter of 1.508 mm. What magnitude current flows in amperes when the…

A: Given data:  Diameter of copper wire (d) = 1.508 mm = 1.508 × 10-3 m Drift velocity (Vd) = 0.500…

Q: Determine the current in a wire of diameter a (mm) and conductivity o (x10^7 S/m). This wire has…

A: Given that diameter of the wire and conductivity and no. of free electrons. Then We have to…

Q: 4) The current supplied by a battery as a function of time is I(t) = (64.27 fA) e-t/(3.78 months).…

A: Current supplied as a function of time is given by; i(t)=64.27e-t3.78 fA Time T=1.413 years=16.96…

Q: A current density of 6.00 x 10-13 A/m2 exists in the atmosphere at a location where the electric…

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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: 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: 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 heating element of an electric coffee maker operates at 120 V and carries a current of 2.00 A.…

A: The power required by the heating element is

Q: An aluminum wire having a cross-sectional area equal to 2.00 x 106 m2 carries a current of 3.50 A.…

A: Given: Cross sectional area A = 2.0×10-6 m2 Current in wire I = 3.5 A. Density of aluminum wire =…

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

A: current due to positive charge =1.3×1019×2e C/min to the right   current due to negative charge…

Q: If 3.0 x 1015 electrons flow through a section of a wire of diameter 2.0 mm in 2.0 s, what is the…

A: Given, n=number of electron=3×10^15 Time=2s

Q: What is the current in the element of an electric clothes dryer with a resistance of 7.4 Ω when it…

A: (given)              Resistance (R)= 7.4 Ω Operating voltage (V)= 240 V                      Voltage…

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.