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An iron wire has a cross-sectional area equal to 5.00×10-6m2. Carry out the following steps to determine the drift speed of the conduction electrons in the wire if it carries a current of 30.0 A. (a) How many kilograms are there in 1.00 mole of iron? (b) Starting with the density of iron and the result of part (a), compute the molar density of iron (the number of moles of iron per cubic meter). (c) Calculate the number density of iron atoms using Avogadro's number. (d) Obtain the number density of conduction electrons given that there are two conduction electrons per iron atom. (e) Calculate the drift speed of conduction electrons in this wire.
The dimentional formula of plank;s constant ML 2 T -1
Q. What is neutral temperature? Maintain the temperature of the cold junction constant the temperature of the hot junction is gradually increased. The thermo emf increase to a
High temperatures and pressures are given for the following power plants. ISU co-generation: 400 psi, 750F City of Ames with RDF: 700 psi, 850F Super-critical power pl
REST: A body is said to be at rest if it does not alter its position with respect to its surroundings.
If a hydrogen atom in its ground state absorbs a photon with a wavelength of 93 nm, it jumps to an excited state. What is the value of the energy in that excited state?
for small values of theta sine theta is equal to tan theta . how?
Power is to be supplied from a source whose resistance is 20 K ? to a load of 100 ?. Would you consider it as a constant voltage source or current source? Explain. Ans. G
Two bodies are moving in circular paths of equivalent radii. If the speed of the first body is twice that of the second, the centripetal acceleration of the first body is how
a pond is an example of
two blocks with masses 4kg and 8kg cre connected by a mass less string and slide down a 30degree inclined plane. the coefficient of kinetic friction between the 4kg block and the p
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