QUESTION 1 Find the electric field everywhere of an infinite uniform line charge with total charge Q. Sol. Using Gauss's Law: ĐE- dA = EA = Since, its the line charge we use the area of a cylinder surrounding the line charge E*2 TT L= / E0 But all the charged get enclosed by the cylinder area, so denc = Q %3D Deriving, we get: E = (1/2 TE0 )*( /rL) QUESTION 3 Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many electrons pass through the filament in 5.00 s? Express all numerical values in three significant figures. The current in the light bulb is: | = milliamperes The total amount of charge passing through the filament in t= 5.00 s is: Q = coulombs Since a single electron has a charge of -1.60× 10¬19 C, the number of electrons passing through the filament in t=5.00 s is: N= x 1019 electrons
QUESTION 1 Find the electric field everywhere of an infinite uniform line charge with total charge Q. Sol. Using Gauss's Law: ĐE- dA = EA = Since, its the line charge we use the area of a cylinder surrounding the line charge E*2 TT L= / E0 But all the charged get enclosed by the cylinder area, so denc = Q %3D Deriving, we get: E = (1/2 TE0 )*( /rL) QUESTION 3 Suppose 1.67 C of charge passes through the filament of a light bulb in 2.00 seconds. How many electrons pass through the filament in 5.00 s? Express all numerical values in three significant figures. The current in the light bulb is: | = milliamperes The total amount of charge passing through the filament in t= 5.00 s is: Q = coulombs Since a single electron has a charge of -1.60× 10¬19 C, the number of electrons passing through the filament in t=5.00 s is: N= x 1019 electrons
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter19: Electric Forces And Electric Fields
Section: Chapter Questions
Problem 60P: A long, straight wire is surrounded by a hollow metal cylinder whose axis coincides with that of the...
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