The National Electric Code specifies a maximum current of 10 A in 16 gauge copper wire (1.29 mm diameter). What is the corresponding current density?

Q: potential

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Q: An 18 gauge copper wire (diameter 1.02 mm) carries a current with a current density of 2.90×10^6…

A: The equation for the current in the wire is given by

Q: Find the current density and drift velocity of free electrons when the particles travel on a copper…

A: Given that:a=1 mmi=40 An=6.0×1028 electrons/m3

Q: A copper cylinder has a diameter of 20.0 mm and a length of 10 m. A potential difference of 100 V is…

A: Concept: To determine the Resistance of the cylinder we will use the formula R=ρLAhere,ρ=…

Q: A length of No. 06 copper-wire, which has a diameter of 3.20 mm, carries a steady current of 20 A.…

A: Given: Diameter of copper wire, d = 3.2 mm Radius, r = d/2 = 3.2/2 =1.6 X 10-3 m Current in wire, I…

Q: The current density in a copper wire of diameter 1.02 mm is 1.75x10^5 A/m^2. The number of free…

A: Given that:-Current density, J=1.75×105 A/m2Diameter, D=1.02×10-3 mNo, of free electrons,…

Q: An aluminum wire has a length of 1.50 m and a cross sectional area of 0.460 mm2. If the resistivity…

A: Given Data   The length of the aluminium wire is l = 1.50 m The cross sectional area of the wire is…

Q: A 30.0 m long extension cord is made from two #19 gauge copper wires. (a) What is the resistance of…

A: L = 30 m  diameter  d = 0.912 mm  resistance

Q: When 115 V is applied across a wire that is 10 m long and has a 0.30 mm radius, the magnitude of the…

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Q: When a potential difference of 112.8 V is applied between the ends of a 9.77 m long wire, the…

A: Conductivity of wire.

Q: A wire has a diameter of 1.0 mm and a length of 30 m, and is found to have a resistance of 1.2 Ω.…

A: The area of the wire is, A=πr2=πd24=3.141.0 mm10-3 m1 mm24=7.85×10-7 m2

Q: The current of an electron beam has a measured current of I=39.2 μA with a radius of 1.74 mm. What…

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Q: A rectangular block of copper has sides of length 14 cm, 26 cm, and 41 cm. If the block is connected…

A: The actual current, if the 8 volt source is a theoretical perfect source, can be done by calculating…

Q: A copper wire has a circular cross section with a radius of 1.25 mm. (a) If the wire carries a…

A: (a) The formula for the drift speed of the electron in the wire is: Conduction electron per unit…

Q: this current level, how much charge flows through a wire in one hour?

A: current in a wire is defined as the charge passing per second through a point in the wire. Given: i=…

Q: What is the electric field of a material when the current is equal to 25A, the resistance is…

A: Write the given value of this problem. Current(I)=25 AResistance(R)=78 ohmCurrent density(J)=24…

Q: 3.0 A battery has an emf of 12 V and an internal resistance of 0.0500 2. What is the terminal…

A: Given : Emf (E) = 12 V Resistance (R) = 0.0500 Ω Current (I) = 8 A

Q: A 5.00 A current runs through a 12 gauge copper wire (diameter2.05 mm) and through a light bulb.…

A: Given, Current, I=5 A Diameter, d=2.05 mm No. of free electron, n=8.5×1028   We know, Current…

Q: A 15m long copper wire has a cross-sectional radius of 3mm. (a) What is the resistance of the wire?…

A: Resistance of the wire is the resistance offered to current while flowing through a conductor. The…

Q: A small but measurable current of 1.2 × 10-10 A exists in a copper wire whose diameter is 2.5 mm.…

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Q: 1. a) Find the electrical resistance of a 0.5 cm long, 22-gauge silver wire, if the electrical…

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Q: A current-carrying gold wire has diameter 6.89 mm. The electric field in the wire is 9.24 V/m. What…

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Q: A house wire is to carry a current of 30A while dissipating no more than 1.40 W of heat per meter of…

A: Given Data The current in the wire is I=30 A. The power dissipation per unit length is Pm=1.40 W/m.…

Q: A gold wire of 0.500 mm diameter has 8.20 × 1028 conduction electrons per cubic meter. If the drift…

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Q: A strip of doped silicon 260.0 um wide contains 8.80 × 1022 conduction electrons per cubic meter and…

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Q: A 54.0-g sample of a conducting material is all that is available. The resistivity of the material…

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Q: A metallic wire has a diameter of 4.12mm. When the current in the wire is 8.00A, the drift velocity…

A: Given, diameter of metallic wire D = 4.12 mm so its radius R = D2 Current in the wire I = 8.0 A…

Q: B. A silver wire 2.6 mm in diameter transfers a charge of 420 C in 80 min. Silver contains 5.8 x…

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Q: A copper wire of cross-sectional area 1.50 mm² has a current of 9.00 A flowing along its length.…

A: Given data: Area of cross-section(A)=1.5mm^2 Current flowing through Wire(I)=9.00A Mass density of…

Q: When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the…

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Q: An engineering intern is studying the effect of temperature on the resistance of a current carrying…

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Q: A motorcyclist is making an electric vest that, when connected to the motorcycle's 12 V battery,…

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Q: A heating element is made by maintaining a potential difference of 75.0 V across the length of a…

A: Given data:  Potential difference (V) = 75.0 V Cross section area (A) = 2.60×10-6 m2 Resistivity (ρ)…

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.