If they are connected exactly as shown, nothing can happen.
Answer:
The formula comes from Lorentz force law which includes both the electric and magnetic field. If the electric field is zero, the force law for just the magnetic field is <u>F=q(ν×B</u>) . Here, F is force and is a vector because the force acts in a direction. q is the charge of the particle. v is velocity and is a vector because the particle is moving in some direction. B is the magnetic flux density.
We can derive an expression for the magnetic force on a current by taking a sum of the magnetic forces on individual charges. (The forces add because they are in the same direction.) The force on an individual charge moving at the drift velocity vd. Since the magnitude of B is constant at every line element of the loop (circle) and it dot product with the line element is B dl everywhere, therefore
∮B dl=μ0 I
B ∮dl=μ0 I
B 2πr=μ0 I
B=μ02πr Id=μ0/4π I dl×rr3
Since, r can be written as r=(rcosθ,rsinθ,z) and dl as dl=(dl,0,0) And now, if we take the cross product we would get
dl×r=−z dlj^+rsinθk^
and therefore the magnitude of dB is equal to
dB=μ0/4π I |dl×r|/r3=μ0/4π I z2+r2sin2θ−−−−−−−−−−√dl/r3
Thus, magnetic field is depending on r,θ,z.
Learn more about Force here-
brainly.com/question/2855467
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Answer:
The magnetic flux is generated when there is change in the magnitude of the magnetic field as well as its direction. ... If the magnetic field is parallel to the place of the area exposed then the magnetic flux generated is zero when the magnetic field is not zero.
_Askmeanything2♡
Answer:
The value is ![h = 32.91 \ m](https://tex.z-dn.net/?f=h%20%20%3D%2032.91%20%5C%20%20m)
Explanation:
From the question we are told that
The diameter of each wheel is ![d = 52 \ cm = 0.52 \ m](https://tex.z-dn.net/?f=d%20%3D%20%2052%20%5C%20cm%20%20%3D%20%200.52%20%5C%20%20m)
The mass of the motorcycle is ![m = 320 \ kg](https://tex.z-dn.net/?f=m%20%20%3D%20%20320%20%5C%20kg)
The rotational kinetic inertia is ![I = 2.1 \ kg \ m^2](https://tex.z-dn.net/?f=I%20%20%3D%20%202.1%20%5C%20%20kg%20%5C%20%20m%5E2)
The mass of the rider is ![m_r = 75 \ kg](https://tex.z-dn.net/?f=m_r%20%3D%20%2075%20%5C%20kg)
The velocity is ![v = 85 \ km/hr = 23.61 \ m/s](https://tex.z-dn.net/?f=v%20%20%3D%20%2085%20%5C%20%20km%2Fhr%20%3D%2023.61%20%5C%20%20m%2Fs)
Generally the radius of the wheel is mathematically represented as
![r = \frac{d}{2}](https://tex.z-dn.net/?f=r%20%3D%20%20%5Cfrac%7Bd%7D%7B2%7D)
=> ![r = \frac{0.52}{2}](https://tex.z-dn.net/?f=r%20%3D%20%20%5Cfrac%7B0.52%7D%7B2%7D)
=> ![r = 0.26 \ m](https://tex.z-dn.net/?f=r%20%3D%20%200.26%20%5C%20%20m)
Generally from the law of energy conservation
Potential energy attained by system(motorcycle and rider ) = Kinetic energy of the system + rotational kinetic energy of both wheels of the motorcycle
=> ![Mgh = \frac{1}{2} Mv^2 + \frac{1}{2} Iw^2 + \frac{1}{2} Iw^2](https://tex.z-dn.net/?f=Mgh%20%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20Mv%5E2%20%20%2B%20%20%20%5Cfrac%7B1%7D%7B2%7D%20%20Iw%5E2%20%20%2B%20%20%5Cfrac%7B1%7D%7B2%7D%20%20Iw%5E2)
=> ![Mgh = \frac{1}{2} * Mv^2 + Iw^2](https://tex.z-dn.net/?f=Mgh%20%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%2A%20%20Mv%5E2%20%20%2B%20%20Iw%5E2)
Here
is the angular velocity which is mathematically represented as
![w = \frac{v }{r }](https://tex.z-dn.net/?f=w%20%3D%20%20%5Cfrac%7Bv%20%7D%7Br%20%7D)
So
![Mgh = \frac{1}{2} * Mv^2 + I \frac{v}{r} ^2](https://tex.z-dn.net/?f=Mgh%20%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%2A%20%20Mv%5E2%20%20%2B%20%20I%20%5Cfrac%7Bv%7D%7Br%7D%20%5E2)
Here ![M = m_r + m](https://tex.z-dn.net/?f=M%20%20%3D%20%20m_r%20%2B%20%20m)
![M = 320 + 75](https://tex.z-dn.net/?f=M%20%20%3D%20%20320%20%2B%2075)
![M = 395 \ kg](https://tex.z-dn.net/?f=M%20%20%3D%20395%20%5C%20%20kg)
![395 * 9.8 * h = 0.5 * 395 * (23.61)^2 + 2.1 *[\frac{ 23.61}{ 0.26} ] ^2](https://tex.z-dn.net/?f=395%20%2A%20%209.8%20%2A%20%20h%20%20%3D%20%20%200.5%20%20%20%20%2A%20%20%20395%20%2A%20%20%2823.61%29%5E2%20%2B%20%202.1%20%20%2A%5B%5Cfrac%7B%2023.61%7D%7B%200.26%7D%20%5D%20%5E2)
=> ![h = 32.91 \ m](https://tex.z-dn.net/?f=h%20%20%3D%2032.91%20%5C%20%20m)
-- The theory of gravity gives a good explanation for things
that we see happening.
-- The theory of gravity predicts things that turn out to be true
when we test them.
-- Nobody has come up with a different theory that explains things better
and makes more accurate predictions that the theory of gravity does.
-- The theory of gravity can't be proved.