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- How many free electrons are there in a rectangular block of a conductor whose dimension is 8 mby 4 m by 3 m? The electrons of this conductor have a drift velocity of 4 m/s when a 9.6 A of currentis applied thru a cross-sectional area of 0.005 m2 . Use electronic charge of 1.6 x 10 –19 coulomb perelectron. Express your answer in scientific notation whose unit is electrons per cubic meter.What is the current when a typical static charge of .250 μC moves from your finger to a metal doorknob in 1.00 μS?A silver wire 2 mm in diameter transfers a charge of 13-mC in 6 minutes. Silver contains 5.8 × 1028 free electrons per cubic meter. Determine the drift velocity in micrometers per second of the electrons in the wire. Use the fundamental unit of charge as 1.602 × 10-19 C. Answer in 4 decimal places.
- How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m by 4 m by 3 m? The electrons of this conductor have a drift velocity of 4 m/s when a 9.6 A of currentis applied thru a cross-sectional area of 0.005 m2 Use electronic charge of 1.6 x 10 –19 coulomb per electron. Express your answer in scientific notation whose unit is electrons per cubic meter.202 Two copper plates are immersed in a copper sulfate solution and connected to a battery. The reading of the Ammeter connected to the cell is 2.5 A and this current lasted for three hours. If the atomic mass of copper is 63.6 u (lu = 1.66 x 10-27 kg), and two electrons are needed to discharge one copper ion, the mass of copper deposited on the Cathode plate is ered 13.50 7 ion 13 Finis a) 0.71 gr c) 3.56 gr e) 17.82 gr. b) 2.14 gr d) 8.91 gre energy expended in moving a charge of 50 uC rence of 6V? 00)%3720 kW.h 720 kJ x10 J 300 pJ A %TY . 9 * much aplies a current of 4A for 20 esistance ? - Prove that W = S P.dt ? t2
- A cylindrical copper wire transmits a charge of 360 °C in 10 minutes. Copper, 8.5x10^28 free per cubic metercontains electrons. If the radius of the wire is I mm, what is the drift velocity of the electrons (in mm's)(take e=1.6x10^-19 C, pi=3) ? A) 0.015 B) 0.055 C) 0.045 D) 0.025 E) 0.035How much current is flowing if 24 C of charge have passed for 2 minutes?How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m by 4 m by 3 m? The electrons of this conductor have a drift velocity of 4 m/s when a 9.6 A of current is applied thru a cross-sectional area of 0.005 m^2. Use electronic charge of 1.6 x 10 –19 coulomb pere lectron. Express your answer in scientific notation whose unit is electrons per cubic meter.
- A steady electric current of 6.5 A flows through a wire. How many coulombs of charge pass through the wire per hour?20. Find the charge q(t) flowing through an element if the current is: a. i(t) = 3A, q(t)ic b. i(t) = (2t + 5)mA, q(0) = 0 c. i(t) = 10e-30t sin 40t A, q(0) = 0A current of 0.300 A through your chest can send your heart into fibrillation, ruining the normal rhythm of heartbeat and disrupting the flow of blood (and thus oxygen) to your brain. If that current persists for 2.00 min, how many conduction electrons pass through your chest?