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liubo4ka [24]
3 years ago
11

A loop of area 0.0633 m^2 is oriented perpendicular (0 deg) to a magnetic field. The magnetic field changes in strength from 0.8

94 T to 2.28 T. How much does the magnetic flux CHANGE as a result?
Physics
1 answer:
frez [133]3 years ago
8 0

Answer:

The magnetic flux change is 0.0877 Wb.

Explanation:

Given that,

Area = 0.0633 m²

Angle = 0°

Magnetic field changes

B_{1}=0.894\ T

B_{2}=2.28\ T

We need to calculate the magnetic flux change

Using formula of flux

\Delta \phi=BA\cos\theta

\Delta \phi=A(B_{f}-B_{i})\cos\theta

Where, B = magnetic field

A = area

Put the value into the formula

\Delta \phi =0.0633\times(2.28-0.894)

\Delta \phi=0.0877\ Wb

Hence, The magnetic flux change is 0.0877 Wb.

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Answer:

Assuming you mean how they work,

Explanation:

Electromagnets work by wrapping the wire around an iron core and attaching it to an electric charge.

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3 years ago
A capacitor is made from two hollow, coaxial, iron cylinders, one inside the other. The inner cylinder is negatively charged and
Musya8 [376]

Answer: 3.12 * 10^12 F ( 3.12 pF)

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The electric field in th eregion rinner<r<router

By using the Gaussian law

∫E*ds=Q inside/εo

E*2*π*rinner^2*L= Q /εo

E=Q/(2*π*εo*r^2)

[Vab]=\int\limits^a_b {E} \, dr

where a and b are the inner and outer radii.

Then we have:

ΔV= 2*k*(Q/L)* ln (b/a)

replacing the values and using that C=Q/ΔV

we have:

C= L/(2*k*ln(b/a)=0.17/(2*9*10^9*3.023)=3.12 pF

5 0
3 years ago
As an aid in working this problem, consult Concept Simulation 11.1. The volume flow rate in an artery supplying the brain is 3.5
klemol [59]

Answer

given,

flow from the artery = 3.5 x 10⁻⁶ m³/s

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area = π R²

       = π x (5.8 x 10⁻³)²

       = 1.06 x 10⁻⁴ m²

v = \dfrac{Q}{A}

v = \dfrac{3.5 \times 10^{-6}}{1.06 \times 10^{-4}}

v = 0.033 m/s

b) new velocity of flow

Radius = R' = R/4

 A V = A' V'

 R² V = R'² V'

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5 0
3 years ago
Una niña está empujando un baúl. El PESO del baúl es de 230 N y el roce es de 50 N, la niña sólo logra ejercer una fuerza de 30
Gre4nikov [31]

Answer:

Su padre necesita aplicar una fuerza de 20 newtons en la misma dirección que la fuerza aplicada por su hija.

Explanation:

Asúmase que el baúl se mueve en una superficie horizontal. La fuerza de rozamiento dada por el problema es la fuerza de rozamiento estático máximo, se requiere una fuerza externa antiparalela a la fuerza de rozamiento estático máximo para que el baúl se empiece a mover. La ecuación de equilibrio de fuerzas horizontales sobre el baúl es:

\Sigma F = P - f = 0

Donde:

P - Fuerza externa aplicada sobre el baúl, medida en newtons.

f - Fuerza de rozamiento estático máximo, medida en newtons.

Se despeja la fuerza externa:

P = f

Si f = 50\,N, entonces:

P = 50\,N

Si la niña solo logra ejercer una fuerza de 30 newtons, su padre necesita aplicar una fuerza de 20 newtons paralela a aquella fuerza.

5 0
3 years ago
What doe an electron and a neutron have in common
Ipatiy [6.2K]

Answer:

Each particle is located in an atom, electrons have negligible mass, neutrons do not hold a charge, and electrons are located within the electron cloud.

Explanation:

7 0
4 years ago
Read 2 more answers
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