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Question

A particle of charge 16×1018C 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 10Vm1 is along the negative Z-axis. If the charged particle continues moving along the X-axis, the magnitude of B is :
  1. 105Wb/m2
  2. 106Wb/m2
  3. 103Wb/m2
  4. 1Wb/m2

A
105Wb/m2
B
103Wb/m2
C
106Wb/m2
D
1Wb/m2
Solution
Verified by Toppr

Since particle continues moving along X-axis, so there should be no force on the particle.
Fnet=0
FelecticFmagnetic=0
qE=qvB
E=vB
10=10×B

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