The conduction electrons in a cylindrical, current-carrying wire have a drift velocity of 0.35 mm/s. The wire has a radius of 1.0 mm and contains 8.6 x 1028 conduction electrons per m3. What is the current in the wire? (The magnitude of the charge of an electron is 1.602 x 10-19 c.) O a. 3.0 A

Q: PROBLEM 1: A silver wire 2.6 mm in diameter transfers a charge of 420 C in 80 min. Silver contains…

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Q: current of I = 4.6 A is passing through a conductor with cross sectional area A = 3.5 × 10-4 m2. The…

A: Given  Current I = 4.6 A   Cross sectional area A =3.5 × 10-4 m2   Number density n =1.2 × 1027…

Q: 1 cm; N free electrons area A t N = 2.1×10²1, ♂ I Udrift = 2.6x10-3 cm/s. A copper wire contains N…

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Q: A 0.62-mm-diameter copper wire carries a tiny current of 2.6 μA. The molar mass of copper is 63.5…

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Q: An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.215 V/m imposed along…

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Q: typical lightning bolt may last for 0.172 s and transfer 1.05 ✕ 1020 electrons. Calculate the…

A: Given: The time interval is 0.172 s. The number of electrons is 1.05x1020.

Q: copper wire carries a current of 8.12 mA a. Find the number of electrons that flow past a given…

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Q: A 0.68-mm-diameter copper wire carries a tiny current of 2.5 μA. The molar mass of copper is 63.5…

A: Given: diameter of copper = 0.68 mm carries a tiny current of I = 2.5 μA. molar mass of copper is…

Q: Q3.a.Calculate the current density for Aluminum wire has radius 1mm and current 1mA? 318.31A/m? b.…

A: Current density of the conductor                                 [2]   A wire of cross-sectional…

Q: A 100-m-long copper wire of radius 0.24 mmmm and mass 160 g is connected across a 1.5-V battery. The…

A: Given: length, l=100 m radius, r=0.24 mm=0.24×10-3m voltage, V=1.5 V resistivity, ρ=1.7×10-8Ω⋅m

Q: The diameter of the copper wire is h=1.3 mm . It carries 2.68 A constant current. There are 8.5×1028…

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Q: In a wire with a 2.01 mm² cross-sectional area, 8.49 × 1020 electrons flow past any point during…

A: Each electron carries a certain amount of charge. So to solve the problem, we will first find…

Q: An unknown wire in a circuit has a circular cross-section with diameter 4.8 mm. It carries a current…

A: The current density is given by Where I = Current in the wire, A = Area of the cross-section of the…

Q: A 1.4x10 V/m electric field creates a 3.5x10¹7 elec/s current in a 1.2-mm-diameter aluminum wire.…

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Q: In a wire with a 2.63 mm² cross-sectional area, 5.51 × 1020 electrons flow past any point during…

A: Given data:  Cross sectional area (A) = 2.63 mm2 = 2.63×10-6 m2 Number of electrons (n) = 5.51×1020…

Q: 5. An iron wire has a cross-sectional area of 5.00 x 10-6m². Carry out the following steps to…

A: Given data The cross-sectional area of the wire is: A = 5 x 10-6 m2 The current in the wire is: I =…

Q: A current of 4.50 A flows in a conductor for 7.50 s. How many electrons pass a given point in the…

A: Given that:-Current, I=4.50 ATime, t=7.50 secWe know that:-The current is rate of flow of charge,…

Q: A copper wire has radius r = 0.314 cm, is 6.00 m long, has resistivity p = 1.72-10-82 m, and carries…

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Q: A copper wire has a cross-sectional area of 3.31× 10-6m². It carries a constant current of 10.0 A.…

A: Given value--- Area = 3.31 × 10-6 m2 . Current = 10 Amp. density of copper = 8.92 g/cm3 . molar…

Q: 2. A copper wire of cross-sectional area 1.20 mm2 has a current of 6.90 A flowing along its length.…

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Q: Ex : A heavy bus bar is 20 cm long and of rectangular cross-section, 1.0 cm × 2.0 cm. What is the…

A: Current, I = 4000 A Length, L = 20 cm = 0.2 m  Area, A = 1 cm × 2 cm  A = 1×10-4 m2

Q: An aluminum wire 1.291 mm in diameter (16-gauge) carries a current of 3 amps. Overall Hint a. What…

A: The diameter of the Aluminium wire, d=1.291 mm The current flowing through the wire, i=3 A

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.