a) The amount of charge that passes through a copper wire in 5.4 s is 2.37 C. Find the current in the wire. The wire has a charge carrier density of 7.5 × 10^26 electrons/m3 and a radius of 1.0 mm. b) What is the cross sectional area of the wire? c) What is the charge of the charge carriers in the copper wire? d) Using all of the above, calculate the drift speed of the electrons in this wire

Q: a) The time rate at which charge flows through the area is defined as the electric current. b) The…

A: a) True , because current is the time rate of flow of charge in unit area. b) False , because the…

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…

A:

Q: length of copper wire has a uniform cross-sectional area of 1.0 mm2. Assume that the drift velocity…

A:

Q: A resistor with a 15.0 V potential difference across its ends emits thermal energy at a rate of 327…

A: Let the value of resistance be R ohm . Than power dissipated by the resisitor R with potential…

Q: A resistor is connected to a 8.4 V battery which delivers 1.7 x 108 J of energy to the resistor in 7…

A:

Q: A wire is 1.1 m long and 1.2 mm2 in cross-sectional area. It carries a current of 4.8 A when a 2.4 V…

A: The length of the wire L = 1.1 m  The cross-sectional area of the wire = 1.2 mm2 The carries a…

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: Part A If there is an annealed copper wire with resistivity 0.172 nano ohm meters and a diameter of…

A: resistivity = 0.172×10-9 ohm - meter diameter = 2 mm radius = 1 mm Length = L electric field (E) =…

Q: A certain fuse "blows" if the current in it exceeds 1.0 A. This fuse melts with a current density of…

A:

Q: A 5.50 m length of 1.9 mm -diameter wire carries a 780 mA current when 23.0 mV is applied to its…

A:

Q: Car batteries are usually rated in A - h (ampere - hours), which is a unit of charge. This rating…

A: 1 A hr = 3600 Coulumbs  Thus 232 A hr = 835200 C

Q: You have a typical resistance of 100 kn. A) How much current could a 12V car battery pass through…

A:

Q: A.)For each set of measurements given in the table taken on wires of three different lengths,…

A: R = pL /A  R= resistance p = resistivity  Consider A= 1m2 crossection

Q: -a-Two wires have the same diameter and same resistance. If one is made of silver and the other is…

A: Here question a and b are not inter-connected. Hence this is a multiple type question and in this…

Q: b) The resistance R of a conductor depends on its shape and physical dimensions and a property of…

A: Part (i)The resistivity of a material depends on its material and the working temperature.Part…

Q: A) A long wire with a radius of 0.450 cm carries a current. The potential difference across a 3.60 m…

A: Current in the circuit = Potential difference/ Resistance of wire. Using relation between resistance…

Q: A tungsten wire is used to determine the melting point of lead. A battery of 6.00 V is attached to…

A:

Q: A copper wire of cross-sectional area 1.00 mm2 has a current of 7.40 A flowing along its length.…

A: number density  n = (1.3×density×NA )/molar mass  n = (1.3×9000×6.02×1023 )/0.064  n = 1.1×1029

Q: A resistor of 1.8 k has a potential of 4.0 x 10^2 V. a) What is the current through the resistor? b)…

A:

Q: A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if…

A: A fuse in an electrical circuit is a wire that is designed to melt if the current density rises 520…

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: A ΔV = 2.3 V battery loses E = 5.5 J of energy each day (t = 24 hrs) powering a cell phone. a)…

A: ΔV = 2.3 V E = 5.5 J t = 24 hours

Q: 1.3x1016 electrons flow through a cross section of silver wire in 310 us with a drift speed of…

A: Electrons move in random in all directions in a conductor. As a result of the application of an…

Q: An aluminum wire 2.053 mm in diameter (12-gauge) carries a current of 1.5 amps. Overall Hint a. What…

A: The number density is found as n=ρM×NA Here ρ,M,NA are mass density, molar mass and Avogadro number…

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

A:

Q: A resistor of 1.8 kΩ has a potential of 4.0 x 10^2 V. a) What is the current through the resistor?…

A: Given:-  A resistor of  R = 1.8 kΩ  A  potential of  V = 4.0 x 102 V. Find:-  a) What is the current…

Q: Current and Resistance  Problem 14:  Resistivity in metals increases with temperature according to…

A: Here is the step-by-step solution:To find the temperature ( T2 ) at which the resistivity ρ(T2​) is…

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.