Explain the difference between a magnetic field and a magnetic flux. hint: Magn flux = B* Area*cos \theta ...
Added by Laura S.
Step 1
It is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. The magnetic field is typically represented by the letter B and is measured in units of Tesla (T). Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 70 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Explain in your own words the difference between the magnetic field and the magnetic flux of the field. These are scalar or vector quantities. In what units are expressed. How these units relate. Some of these quantities either or none are a property of a given point of space. Discuss the answers in detail.
Madhur L.
The magnetic flux, ϕ is defined as ϕ = B.A (1) where B is the magnetic field vector and A is the area vector of the area enclosing the magnetic field. The dot is the dot product of vectors. Therefore the magnetic flux, ϕ is a scalar ϕ = BAcosθ (2) where, θ is the angle between the vector B and the vector A. The density of the field lines is proportional to the intensity of the magnetic field, B. Also, the larger the area considered in the field the more field lines it encloses. Therefore the magnetic flux through an area A enclosing a magnetic field, is proportional to the number of field lines crossing the surface area vertically. Consider the loop shown in fig. 1. The magnetic flux through the loop is ϕ = B.A, where A is the area vector of the loop. The area vector has magnitude equal to the surface area, A, and direction that is perpendicular to the surface area. a) What is the value of the magnetic flux, ϕ if the angle between B & A is 90º? Explain by considering eqn. 2 & also by considering field lines. (Hint: consider eqn. 2 and also explain by considering the number of magnetic field lines crossing the surface area vertically).
Adi S.
What is magnetic flux? a) Product of an area and magnetic field perpendicular to the area is defined as magnetic flux. b) Product of area and magnetic field parallel to the area is defined as magnetic flux. c) An area divided by magnetic field around the area is defined as magnetic flux. d) The resultant of vector addition of area and magnetic field is defined as magnetic flux.
Sri K.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD