Induced Voltage Calculation for Stick in Magnetic Field B

AI Thread Summary
To calculate the induced voltage for a stick 91 cm long in a magnetic field of 0.606 T, the correct formula is U = B * L * V, where L is the length of the stick and V is its velocity. The initial calculation using U = B/(a*t) was incorrect, as it would imply infinite EMF for a stationary object. After recognizing the mistake, the focus shifted to using the appropriate equation involving area and magnetic field. The discussion clarified the importance of using the correct parameters for accurate voltage calculations. The participant expressed gratitude for the correction and indicated a better understanding of the concept.
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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