Induced Voltage Calculation for Stick in Magnetic Field B

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SUMMARY

The discussion centers on calculating the induced voltage for a stick 91 cm long, accelerated at 1 m/s² in a magnetic field of 0.606 T. The incorrect formula initially used was U = B/V, which led to confusion regarding the induced voltage. The correct formula for electromotive force (EMF) is U = B * L * V, where L is the length of the stick and V is its velocity. The participant ultimately recognized the error in their calculations and clarified the proper equation for induced voltage.

PREREQUISITES
  • Understanding of electromagnetic induction principles
  • Familiarity with the formula for electromotive force (EMF)
  • Basic knowledge of physics concepts such as acceleration and magnetic fields
  • Ability to perform unit conversions, particularly between volts and millivolts
NEXT STEPS
  • Study the principles of electromagnetic induction in detail
  • Learn about the Lorentz force and its applications in electromagnetism
  • Explore the relationship between velocity, magnetic field strength, and induced voltage
  • Investigate practical applications of induced voltage in engineering and technology
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Physics students, electrical engineers, and anyone interested in understanding electromagnetic induction and its applications in real-world scenarios.

Petkovsky
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OK, so we have a stick 91cm long which is accelerated by 1m/s/s in a magnetic field B= 0.606T.

I need to find the induced voltage at time t = 288ms.

So U = B/V which is B/(a*t)

When i calculate i get 2 Volts which i think is too much. Plus the solution should be given in mV. Is this the correct result or I'm doing something wrong?
 
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Petkovsky said:
So U = B/V which is B/(a*t)

Uh, that equation is wrong. For one thing, it says a motionless stick (V=0) would generate an infinite amount of EMF!

What is the equation for EMF or U in terms of area and magnetic field?
 
Oh, sorry it's B * L * V, i missinterpreted l and /. Tnx, anyway it is a stupid equation the way i wrote it, I should have seen that.
 
No problem. If you're still stuck post again, but it sounds like you have it now.
 

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