Q/m of a particle in a straight line.

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SUMMARY

The value of charge-to-mass ratio (q/m) for a particle moving in a circle of radius 6.2 mm within a 0.56 T magnetic field, when subjected to a crossed electric field of 220 V/m, is calculated using the formula q/m = 2v/(br)^2. Substituting the values, the calculation yields q/m = 36499377 C/kg. However, there is a suggestion in the discussion that the formula used may be incorrect, prompting a recommendation to derive the formula independently.

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zyphriss2
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What is the value of q/m for a particle that moves in a circle of radius 6.2 mm in a 0.56 T magnetic field if a crossed 220 V/m electric field will make the path straight?



q/m=2v/(br)^2
This was given to us in our lab and i plugged everything in and it doesn't turn out right.


q/m=2(220v/m)/((.56T)(.0062m))^2
q/m=(440v/m)/.000012055=36499377
 
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zyphriss2 said:
What is the value of q/m for a particle that moves in a circle of radius 6.2 mm in a 0.56 T magnetic field if a crossed 220 V/m electric field will make the path straight?
…
q/m=2v/(br)^2
This was given to us in our lab

Hi zyphriss2! :smile:

That formula doesn't look right to me :confused: …

have you tried finding the formula from scratch?
 

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