Can someone please help me ?

Two long, parallel wires are attracted to each other by a force per unit length of 305 µN/m. One wire carries a current of 25.0

kykrilka [37]

To solve this problem we will use the concepts related to the electromagnetic force related to the bases founded by Coulumb, the mathematical expression is the following as a function of force per unit area:

$\frac{F}{L} = \frac{kl_1l_2}{d}$

Here,

F = Force

L = Length

k = Coulomb constant

I =Each current

d = Distance

Force of the wire one which is located along the line y to 0.47m is $305*10^{-6}N/m$ then we have

$l_2 = \frac{F}{L} (\frac{d}{kl_1})$

$l_2 = (305*10^{-6}N/m)(\frac{0.470m}{(2*10^{-7})(25A))})$

$l_2 = 28.67A$

Considering the B is zero at

$y = y_1$

$\frac{kI_2}{2\pi y} =\frac{kI_1}{2\pi y_1}$

$\frac{(4\pi*10^{-7})(28.67)}{2\pi (y_1)} = \frac{(4\pi *10^{-7})(25)}{2\pi (0.47-y_1)}$

$y_1 = 0.25m$

Therefore the value of y for the line in the plane of the two wires along which the total B is zero is 0.25m

5 0

4 years ago

Which elements are not likely to be formed in the sun sometime during its life cycle?

Sladkaya [172]

Answer:

correct answer is iron

Explanation:

solution

as Iron is only formed in the cores of the star that is more massive than the sun because it takes very much energy as gravitational force push inward on the star

and the sun can form the helium and carbon and the oxygen and also other elements

but not the iron or any iron group element

so correct answer is iron

8 0

3 years ago

Newton's First Law of Motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon

atroni [7]

This is sometimes called the Law of Inertia

3 0

3 years ago

To see her full heiht, a child that is 1 meter tall needs a mirror that is at least A) 033 m tall. 6) 050 m tall C) 075 m tall.

svlad2 [7]

Answer:

0.50 m tall

Explanation:

To see the full height of the child the height of the mirror should be half of the height of the child

As it id given that the height of the child is 1 meter so the height of the mirror is $=\frac{height\ of\ child}{2}=\frac{1}{2}=0.5m$

As it is a rule that to see the full any object the height of the mirror should be half of the height of the object

7 0

4 years ago

Electric discharge between two objects follows a predictable path?

LenaWriter [7]

Answer: YES

They always move towards the earth or any metallic conductor

Explanation:

Electric discharge between two objects follows a predictable path? YES

Static electricity is a buildup of electric charges on objects. Charges build up when negative electrons are transferred from one object to another. The object that gives up electrons becomes positively charged, and the object that accepts the electrons becomes negatively charged.

Once an object becomes electrically charged, it is likely to remain charged until it touches another object or at least comes very close to another object. That’s because electric charges cannot travel easily through air, especially if the air is dry.

They always move towards the earth or any metallic conductor

7 0

3 years ago