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The acceleration of an electron at a certain moment in a magnetic field B=2 i +3j +4k is a = x i + j - k. Find The value of x is

The acceleration of an electron at a certain moment in a magnetic field B=2 i +3j +4k is  a = x i + j - k. Find The value of x is
 

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2 Answers

ng29
1698 Points
8 years ago
B.a= 0  ,  if only magnetic field is present
so      2x+3-4=0      
2x=1      x=1/2
approve if useful
Vinayak Jadhav
15 Points
4 years ago
A stream of proton and alfa particles of equal momenta enter uniform magnetic field perpendicularly. The radii of their orbits in ratio

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