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Q.

A particle of charge 16×1018 coulomb moving with velocity  10 ms1 along the x-axis enters a region where a magnetic field of induction B is along the y-axis, and an electric field of magnitude 104 V/m is along the negative z-axis. If the charged particle continues moving along the x-axis, the magnitude of B is

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a

105  Wb/m2

b

1016 Wb/m2

c

10-3  Wb/m2

d

103  Wb/m2

answer is C.

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Detailed Solution

B=Ev=10410=103  Wb/m2

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