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Typical household currents are on the order of a few amperes. If a 1.50 A current flows through the leads of an electrical appliance, (a) how many electrons per second pass through it, (b) how many coulombs pass through it in 5.0 min, and (c) how long does it take for 7.50 $\mathrm{C}$ of charge to pass through?

a.$9.38 \times 10^{18}$ electrons.b.$\Delta a=450 c$c.5 sec

Physics 102 Electricity and Magnetism

Chapter 19

Current, Resistance, and Direct-Current Circuit

Electric Charge and Electric Field

Gauss's Law

Electric Potential

Capacitance and Dielectrics

Current, Resistance, and Electromotive Force

Direct-Current Circuits

Electromagnetic Induction

Cornell University

Rutgers, The State University of New Jersey

University of Michigan - Ann Arbor

University of Washington

Lectures

10:31

A capacitor is a passive two-terminal electrical component that stores electrical energy in an electric field. The effect of a capacitor is known as capacitance. The electrical charge stored in a capacitor is proportional to the potential difference between its terminals. A capacitor is defined as an electrical component that can store an electric charge. The effect of a capacitor is known as capacitance. The charge on a capacitor is directly proportional to the potential difference across its terminals. The unit of capacitance in the International System of Units (SI) is the farad (F), defined as one coulomb per volt. In electrical engineering, a common symbol for capacitance is the lowercase Greek letter "rho" (?). The capacitance of a capacitor is also expressed in farads.

18:38

In physics, electric flux is a measure of the quantity of electric charge passing through a surface. It is used in the study of electromagnetic radiation. The SI unit of electric flux is the weber (symbol: Wb). The electric flux through a surface is calculated by dividing the electric charge passing through the surface by the area of the surface, and multiplying by the permittivity of free space (the permittivity of vacuum is used in the case of a vacuum). The electric flux through a closed surface is zero, by Gauss's law.

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current flowing through the lead off an electrical appliances. One fine 50 NPR. Now, in the first part off the problem, we want to calculate the number of electrons flowing through the lead in one skin. So here we have Time is equal to once again guarantees one point fives. It'll m Pierre. Yes, we have The relation for Clint is they'll take you upon dirty here The documents mega mode off, guys flowing through in time. They're touchy. Are they attack you? Is it will do number off electrons, dimes Childish on Elarton. So we get I equal to and I'm Z upon Indarti From here we have and equal to ay times the dirty upon e nobody plugging defend values here he had a eyes 1.50 m Pierre Time is once again Ah, Bomb Johnny Shannon Adonis one buyer 60 times 10 to the power minus 19 column for a drunk So we get and you called too nine by three at times came to the power 18 electrons. So this dance that are part of this problem now in the second but you want to calculate the amount of charge falling into the lead in five minutes. So here we have time. We could do five meters, which is equal to see you under. It's a go No again taking the Galician. They'll take you equal toe I times dirty here eyes 1.50 in Pierre and the time is three undersea again. So we get the vacuum equal to 450 column No, in the Parsi, we want to call clear the time during which 7.50 column charge vases from elite again by taking the relation I equal to take you up on the dirty are we have the dirty because to the vacuum upon I here it's like you is. It's 7.50 column and amount of corn is 1.50 m Pierre. So we get the dirty equal to five. It's a go. There's the end of the problem. Thanks for watching

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