Respuesta :
Magnetic field 'B' at a distance 'r' from an substantially
large conductor carrying current 'i' = (2x10^ -7)('i' ) / r
Magnetic field 'B' beyond the wire= (2x10^ -7)(8.15x10^18x1.6x10^ - 19 ) /0.046
=5.7 x10^ -12 tesla
As electrons move from west to east, the conventional current is from east to
west.
By means of Maxwell's right handed corkscrew rule, the way of magnetic field is
from south to north.
The magnitude of the magnetic field of this wire is about 5.67 × 10⁻⁶ T
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Further explanation
Let's recall magnetic field strength from current carrying wire and from center of the solenoid as follows:
[tex]\boxed {B = \mu_o \frac{I}{2 \pi d} } [/tex]
B = magnetic field strength from current carrying wire (T)
μo = permeability of free space = 4π × 10⁻⁷ (Tm/A)
I = current (A)
d = distance (m)
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[tex]\boxed {B = \mu_o \frac{I N}{L} } [/tex]
B = magnetic field strength at the center of the solenoid (T)
μo = permeability of free space = 4π × 10⁻⁷ (Tm/A)
I = current (A)
N = number of turns
L = length of solenoid (m)
Let's tackle the problem now !
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Given:
Number of Electrons per second = N/t = 8.15 × 10¹⁸ electrons/second
Distance = d = 4.60 cm = 0.046 m
Permeability of free space = μo = 4π × 10⁻⁷ T.m/A
Charge of Electron = e = 1.6 × 10⁻¹⁹ C
Asked:
Wire's Magnetic Field Strength = B = ?
Solution:
We will use this folllowing formula to solve the problem:
[tex]B = \mu_o \frac{I}{2 \pi d}[/tex]
[tex]B = \mu_o \frac{Q}{2 \pi d t}[/tex]
[tex]B = \mu_o \frac{Ne}{2 \pi d t}[/tex]
[tex]B = 4\pi \times 10^{-7} \times \frac{8.15 \times 10^{18} \times 1.6 \times 10^{-19}}{2 \pi \times 0.046}[/tex]
[tex]\boxed{B \approx 5.67 \times 10^{-6} \texttt{ T}}[/tex]
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Learn more
- Temporary and Permanent Magnet : https://brainly.com/question/9966993
- The three resistors : https://brainly.com/question/9503202
- A series circuit : https://brainly.com/question/1518810
- Compare and contrast a series and parallel circuit : https://brainly.com/question/539204
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Answer details
Grade: High School
Subject: Physics
Chapter: Magnetic Field
