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JEE Mains Model Paper 19

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Question : 23 of 90
 
Marks: +1, -0
A particle of charge q and mass m starts moving from the origin under the action of an electric field
→
E
 = E°
^
i
 and magnetic field
→
B
 = B°
^
k
 . Its velocity at (x, 3, 0) is (4
^
i
+3
^
j
) . The value of x is
Validate
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