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Sholpan [36]
3 years ago
11

Please help me with this question

Physics
1 answer:
padilas [110]3 years ago
7 0
This makes no sense thought. What is the question asking?

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If a single circular loop of wire carries a current of 62 A and produces a magnetic field at its center with a magnitude of 1.20
s2008m [1.1K]

Given Information:  

Current in loop = I = 62 A

Magnitude of magnetic field = B = 1.20x10⁻⁴ T

Required Information:  

Radius of the circular loop = r = ?  

Answer:  

Radius of the circular loop = 0.324 m

Explanation:  

In a circular loop of wire with radius r and carrying a current I  induces a magnetic field B which is given by

B = μ₀I/2r

Please note that for an infinitely straight long wire we use 2πr whereas for circular loop we use 2r

Where μ₀= 4πx10⁻⁷ is the permeability of free space

Re-arranging the equation yields

r = μ₀I/2B

r = 4πx10⁻⁷*62/2*1.20x10⁻⁴

r = 0.324 m

Therefore, the radius of this circular loop is 0.324 m

3 0
3 years ago
A bus starts from rest and accelerates to 14 m/s in 4 s. What is the
Komok [63]
Acceleration = 14/4 = ....
3 0
3 years ago
The variable that the experimenter decides to change to see if there is or is not an effect is the Independent Variable.
EastWind [94]
The correct answer is:  [A]:  "TRUE" .
_________________________________________________
6 0
3 years ago
Singularity is difficult to understand due to the fact that the idea of space and time are not applicable given the definition.
laiz [17]
I assume you are talking about the space-time singularity.

Yes, the gravitational singularity is absurd since the gravitational field is infinite so that the celestial body does NOT depend on the coordinates anymore, i.e. the normal space-time theorem does NOT apply anymore.

However, this can be predicted by general relativity, where the singularity can appear at the center of the black hole.

 So if you are talking about classical physics, yes it's difficult. But if you are talking about modern physics, then it's predictable and analyzible. 
5 0
3 years ago
A hill has three paths up and sides to a flat summit area that three path Lanks are different but the vertical height from the b
arlik [135]

Answer:

1- The lank with the least slope will be the easiest to climb because it will require the least force.

2- All three paths will require the same energy as the work done will be the same in all three cases.

Explanation:

1-  Work done W = Force x Displacement i.e. W = F × cosФ where 'Ф' is the angle between force and displacement. Smaller the angle least is the force required to climb. Hence the path with least slope will be easier to climb.

2- Since W = F × cosФ as the angle increase cos Ф decrease which means the slope is increase and consequently the force required also increases but the total work done remains the same. Hence the energy required to climb all three Lanks will be the same.

5 0
2 years ago
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