Magnetic Flux Density and the Relationship to Force and Units

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SUMMARY

The discussion centers on the formula for calculating the force on a wire in a magnetic field, expressed as F = BILsin(theta). The variable B represents magnetic flux density, measured in Teslas (T). There is clarification regarding the relationship between units, specifically that 1T equals 1N/mA, correcting a misunderstanding that 1T equals 1NmA. This highlights the importance of precise unit notation in physics.

PREREQUISITES
  • Understanding of basic physics concepts, particularly electromagnetism.
  • Familiarity with the formula for force in a magnetic field: F = BILsin(theta).
  • Knowledge of unit measurements, specifically Tesla (T), Newton (N), meter (m), and ampere (A).
  • Ability to interpret and manipulate unit ratios in physical equations.
NEXT STEPS
  • Research the derivation and applications of the formula F = BILsin(theta).
  • Study the concept of magnetic flux density and its significance in electromagnetism.
  • Explore unit conversions and dimensional analysis in physics.
  • Learn about the practical applications of magnetic fields in engineering and technology.
USEFUL FOR

Students of physics, educators teaching electromagnetism, and anyone interested in understanding the principles of magnetic fields and their applications in real-world scenarios.

maccaman
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My physics teacher today taught my class the formula with magnetic flux density...

Force on a wire in a magnetic field

F = BILsin(theta)

the part i am enquiring about is the B
in which he explained to be

B is the magnetic field strength (measured in Tesla's)

He also said 1T = 1NmA

I enquired about how could this be, because then Force would not be equal to Newtons. I revised it to be 1T = 1N/mA

Note: m is meters, and A is amperes, not milliampers for mA, just saying.

Can anyone tell me if i am right or not
 
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Yes you are correct. If your professor had a little dot in between the N and mA, he would technically be correct too, since a lot of times ratios of units use the little dot, which you could have mistook for multiplication.
 
thankyou, nah he didnt have a dot there, i will tell him on monday, cus he seemed to be puzzled by it too, thanks a lot
 

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