What is the Magnitude of the Magnetic Field in a Moving Loop?

In summary, a rectangular loop of wire is moving through a region with a magnetic field directed into the page at a speed of .042 m/s. The magnetic field outside this region is zero. During a time of 1.5 s, the change in magnetic flux has a magnitude of .0044 Wb. The equation to use is E = delta flux / delta time, but it is unclear where the velocity comes into play. The flux in this case is equal to B*A, and since the change in flux is known, the next step is to determine what part of the flux is changing: B, A, or both.
  • #1
matt72lsu
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Homework Statement



A rectangular loop of wire is moving toward the bottom of the page with a speed of .042 m/s. The loop is leaving a region in which a magnetic field is directed into the page; the magnetic field outside this region is zero. If during the time of 1.5 s the magnitude of the change in magnetic flux is .0044 Wb, what is the magnitude of the magnetic field?

Homework Equations



E = delta flux / delta time ?

The Attempt at a Solution


I thought this was the equation to use mainly. but i have no idea where the veloicty comes into play. any help would be appreciated!
 
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  • #2
Flux is B*A in this case, and you know d/dt (flux) = .0044. So you need to discover what part of the flux is changing: B, A, both?
 

What is the magnitude of magnetic field?

The magnitude of magnetic field is a measure of the strength of the magnetic field at a particular point in space. It is typically measured in units of tesla (T) or gauss (G).

How is the magnitude of magnetic field calculated?

The magnitude of magnetic field can be calculated using the equation B = μ0I/2πr, where B is the magnetic field strength, μ0 is the permeability constant, I is the current, and r is the distance from the source of the magnetic field.

What factors affect the magnitude of magnetic field?

The magnitude of magnetic field can be affected by the strength of the electric current, the distance from the source of the magnetic field, and the permeability of the material through which the field is passing.

Why is the magnitude of magnetic field important?

The magnitude of magnetic field is important because it plays a crucial role in many natural phenomena such as the Earth's magnetic field, as well as in technological applications such as electromagnets and magnetic resonance imaging (MRI).

How is the magnitude of magnetic field measured?

The magnitude of magnetic field is typically measured using a device called a magnetometer, which can detect and measure the strength and direction of magnetic fields. Other methods, such as Hall effect sensors, can also be used to measure magnetic field strength.

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