2) What is the drift speed of electrons in the 12-gauge wire of a certain conductor in a typical building of the UET physics lab having cross- sectional area of 3.31 um^2 and carries a uniform current of 10000.0 mA? Suppose each atom of the conductor contributes one free electron to the current, whereas the molar mass and density of the conductor is 63.5 g/mol and 8.92 g/cm^3.

Q: The current passing through a conductor is described by I(t) = lå e−¹/¹. If I = 2A and t = 0.5 s,…

A: The current passing through a conductor is described by

Q: n aluminum strip 10 cm long, 2 cm wide and     and 3 mm thick. A current flows in the longitudinal…

A:

Q: A wire has a current density of 7.77 x 10° A/m“. If the cross-sectional area of the wire is 3.57…

A:

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: When a current flows in an aluminum wire of diameter 4.45 mm, the drift speed of the conduction…

A:

Q: A solid steel wire has a cross-sectional area of 8.05 x 10-6 m2 and is carrying a constant current…

A:

Q: Use the worked example above to help you solve this problem. The amount of charge that passes…

A:

Q: 1. The quantity of charge through a conductor is modeled as Q(1)= (4.2)f+(-0.8)t+ (5.1) C What is…

A:

Q: A wire has a current density of 6.59×106 A/m2. If the cross- sectional area of the wire is 2.61 mm2,…

A:

Q: A conductor of gold with length L=10cm , and radius r=1 cm , carrying a current I = 2A , and the…

A: Given,  length L=10cm radius r=1 cm current I = 2A number of free electrons n=5*1028 elec/m3 .  ΔV =…

Q: We have a copper conductor, length l = 1m and circular section of diameter d = 4mm a) Calculate the…

A: Part (a) Basic Details The resistance of the conductor depends on the resistivity, the length of the…

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

A:

Q: A wire with a radius of 2.22mm is made of a conducting material that has an atomic mass of 72.0…

A: Given  radius of wire = R = 2.22 mm  atomic mass = 72.0 grams/mole mass density = 6.17x103 kg/m3…

Q: When a current flows in an aluminum wire of diameter 4.67 mm,4.67 mm, the drift speed of the…

A: Radius of the aluminium wire(r)=Diameter of the wire2=4.67×10-32=2.335×10-3mArea of the…

Q: Copper has a density of 8.96 x 10³ kg/m³ and a resistivity of 1.70 x 10-³0-m. a) On the basis of the…

A: The density of Copper is                          The resistivity is

Q: A 270-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1,210…

A: Time = 30.2207 year Or Time = 30.2 year (approximately)Explanation:

Q: A cylindrical platinum wire is 0.0644 mm in diameter and 1.05 m in length. The wire carries a 1.05 A…

A: The diameter of the wire, d=0.0644mm=0.0644×10−3m.So its radius isr=d/2=0.0644×10−32m.So the…

Q: What current flows through a 2.58-cm-diameter rod of pure silicon that is 19.0 cm long, when 1.00 ✕…

A: According to question--- Given values--- diameter = 2.58 cm. length of rod = 19 cm. voltage = 103…

Q: A current of I = 1.4 A is passing through a conductor with cross sectional area A = 4.5 × 10-4 m2.…

A:

Q: A 320-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1,070…

A:

Q: (1) What is a definition of electric current? Label the variables. (2) Suppose that 1016 electrons…

A:

Q: A spool of copper wire 200 m long and with a diameter of 0.320 mm is at 20.0°C. For copper, the…

A:

Q: A 220-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1,180 A.…

A: Calculate the cross-sectional area of the cable. A=π4d2A=π4(2 cm×1 m100 cm)2A=3.14×10−4 m2

Q: In heavy rush-hour traffic, you drive in a straight line at 12 m/s for 1.5 minutes, then you have to…

A: First caseVelocity v1= 12 m/sTime t1=1.5 minute Second case In stop condition v2=0 m/sTime t2=3.5…

Q: current of I = 1.4 A is passing through a conductor with cross sectional area A = 4.5 × 10-4 m2. The…

A: given that i = 1.4 Amp  A=4.5 × 10-4 m2  n = 9.7 x 1027 m-3 we know that i = neA Vd

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.