Introductory Circuit Analysis
13th Edition
ISBN: 9780133923919
Author: Boylestad, Robert L.
Publisher: Pearson Education
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Textbook Question
Chapter 2, Problem 10P
Find the charge in coulombs that requires
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5. A conductive block in the shape of a rectangular solid has a cross-sectional area of 12 cm2 across its width, and a length of 16 cm. The block has a resistance of 220 Ω. The block contains 7e+18 conduction electrons (be careful, this is not "n", although it will help you find "n"). Connecting a battery to the two ends of the block, a potential difference of ΔV= 19 V is maintained along its length.
(A)What is the current (in A) in the block?
a)0.130 b)0.0337 c)0.0864 d)0.282 e)0.182 f)0.0751
(B)If the current density is uniform, what is its magnitude (in A/m2?
a)62.6 b)152 c)72.0 d)235 e)108 f)28.1
(C)What is the drift speed (in m/s) of the conduction electrons?
a)0.0402 b)0.0123 c)0.0260 d)0.00481 e)0.0185 f)0.0107
(D)What is the magnitude of the electric field (in N/C or V/m) in the block (Consider this E-field to be constant along the length and remember that there is a formula for the relation between V and E for a constant E-field)?
a)103 b)251 c)46.3 d)119 e)387 f)178…
5. A conductive block in the shape of a rectangular solid has a cross-sectional area of 12 cm2 across its width, and a length of 16 cm. The block has a resistance of 220 Ω. The block contains 7e+18 conduction electrons (be careful, this is not "n", although it will help you find "n"). Connecting a battery to the two ends of the block, a potential difference of ΔV= 19 V is maintained along its length.
(A)What is the current (in A) in the block?
a)0.130 b)0.0337 c)0.0864 d)0.282 e)0.182 f)0.0751
(B)If the current density is uniform, what is its magnitude (in A/m2?
a)62.6 b)152 c)72.0 d)235 e)108 f)28.1
(C)What is the drift speed (in m/s) of the conduction electrons?
a)0.0402 b)0.0123 c)0.0260 d)0.00481 e)0.0185 f)0.0107
(D)What is the magnitude of the electric field (in N/C or V/m) in the block (Consider this E-field to be constant along the length and remember that there is a formula for the relation between V and E for a constant E-field)?
a)103 b)251 c)46.3 d)119 e)387 f)178…
6
A charge of 1 Coulomb is equivalent to ______
Select one:
a.
1000 micro Coulombs
b.
1 micro Coulombs
c.
10 micro Coulombs
d.
1 million micro Coulombs
Chapter 2 Solutions
Introductory Circuit Analysis
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