A surveyor is using a magnetic compass 6.4 m below a power line in which there is a steady current of 120 A. (a) What is the mag netic field in microteslas at the site of the compass due to the power line? (b) Will this field interfere seriously with the compass reading? The horizontal component of Earth’s magnetic field at the site is 20 µT.
2 answers:
Answer:
Explanation:
distance between compass and the wire, r = 6.4 m
current in the wire, i = 120 A
(a)
The magnetic field due to the current carrying conductor is
B = 3.75 x 10^-6 Tesla
(b)
The magnetic field due to the earth is
B' = 20 micro Tesla = 20 x 10^-6 tesla
Yes, the magnetic filed due to current carrying wire interfere the magnetic compass.
Answer:
Explanation:
Magnetic field due to a long current carrying conductor
μ₀ / 4π x 2i / r ( i = current , r = distance of point from wire )
= 10⁻⁷ x 2 x 120 / 6.4 ( i = 120 A , r = 6.4m )
= 37.5 x 10⁻⁷ T .
= 3. 75 X 10⁻⁶ T .
= 3.75 µT.
b )
The direction of this field will be horizontal hence it will affect magnetic needle.
You might be interested in
When light passes through one transparent medium to another transperent medium it bends and that beding of light is know as refraction of light !
Well mostly because it's for oceans and lakes that have waves. so if you don't live near any of these, you wouldn't be getting power. <span />
Answer:
2.59 m
Explanation:
Coordinates of origin = (0, 0)
Coordinates of Point p where the fly reach = (2.3 m, 1.2 m)
Use the distance formula of coordinates to find the distance between the origin and the point P.
d = 2.59 m
Thus, the distance between the origin and the point P is 2.59 m.
Answer:
Explanation:
weight ( w ) = 100 N
mass (m) = ?
WE know
g = 10 m/s²
w = m * g
or
m = w / g
m = 100 / 10
m = 10 kg
hope it will help :)
Answer:
D. An image that is smaller than the object and is behind the mirror
