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# A particle of charge 16×10−18C moving with velocity 10m/s 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 10Vm−1 is along the negative Z-axis. If the charged particle continues moving along the X-axis, the magnitude of B is :105Wb/m2106Wb/m210−3Wb/m21Wb/m2

A
105Wb/m2
B
103Wb/m2
C
106Wb/m2
D
1Wb/m2
Solution
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#### Since particle continues moving along X-axis, so there should be no force on the particle.Fnet=0Felectic−Fmagnetic=0qE=qvBE=vB10=10×B

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