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The acceleration of an electron at a certian moment in a magnetic field B=2i+3j+4k is a = xi+j-k. The value of x is 1) 0.5 2) 1 3) 2.5 4) 1.5

The acceleration of an electron at a certian moment in a magnetic field B=2i+3j+4k is a = xi+j-k. The value of x is 
 
1) 0.5      2)  1    3)  2.5   4)  1.5

Question Image
Grade:12

1 Answers

Arun
25763 Points
2 years ago
Dear student
 
 
B.a= 0  ,  if only magnetic field is present
so      2x+3-4=0      
2x=1      x=1/2
 
Hope it helps
 
Regards
Arun

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