Q6. The resistivity of a 4.0 m long copper wire is 1.72 x 10-8 2 m and its cross-sectional area is 2.0 x 10-6 m². If the wire carries a current of 0.20 A, then the voltage difference (in mV) across the wire: D) 0.79 E) 2.55 61.57 B) 69 C) 1.7
Q6. The resistivity of a 4.0 m long copper wire is 1.72 x 10-8 2 m and its cross-sectional area is 2.0 x 10-6 m². If the wire carries a current of 0.20 A, then the voltage difference (in mV) across the wire: D) 0.79 E) 2.55 61.57 B) 69 C) 1.7
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Q 6 please
Transcribed Image Text:The following constants can be useful:
Charge of electron
Mass of the electron
Mass of the proton
lel = 1.6 x 10-1⁹ C
m, = 9.11x10 kg;
m = 1.67x10-27 kg :
Acceleration due to gravity
Permittivity of free space
Coulomb's constant
π = 3.14
a
Choose the best answer of the following questions (L
In the figure shown, if a = 10.0 cm, b = 40.0 cm,
q= 6.0 μc, and Q = -10.0 μc. Answer questions 1,2 and 3.
magnitude of the electric force (in N) between q and Q equals:
C) 2.4
B) 0.45
D) 1.2
he magnitude of the electric field ( in x 106 N/C) at point y is:
C) 9.2
B) 2.4
) 1.8
D) 3.6
Q3. The magnitude of the electric potential (in KV) at point x is:
A)-350
B)-211
C) 440
D) 211
E) 360
Q4. A charge of 3 nC is located at the center of a cube of side length of 1 cm. The electric flux (in N.m²/C)
through one surface is:
A) 200
B) 565
C) 339
D) 233
Q5. In the figure shown, if C₁ = 9 µF, C₂ = 9 µF, C3 = 6 µF,
then the equivalent capacitance (in µF) between the two points a and b is:
A) 4.5
B) 10
C) 8.25
D) 4
E) 12
Q6. The resistivity of a 4.0 m long copper wire is 1.72 x 10-8 2 m and its cross-sectional area is 2.0 x 10-6
m². If the wire carries a current of 0.20 A, then the voltage difference (in mV) across the wire:
.
A) 1.57
B) 6.9
C) 1.7
D) 0.79
E) 2.55
E) 524
g = 9.8 m/s²
8=8.85 x 10-12 c² / Nm²
ke = 9 x 10⁹ N.m²/C²
a
b
E) -0.45
E) 1.1
C₁
HH
Cz
a
y
C3
b
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