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# This section contains multiple choice questions. Each question has 4 choices (a), (b), (c) and (d ) out of which ONE OR MORE may be correct.A proton moving with a constant velocity passes through a region of space without any change in its velocity. If E and B represent the electric and magnetic fields respectively, Identify which of the following options can be true for the space.E=0,B=0E=0,B≠0E≠0,B=0E≠0,B≠0

A
E=0,B0
B
E0,B=0
C
E0,B0
D
E=0,B=0
Solution
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#### A proton moving through a space contain electric and magnetic field will experience a force F=q(→E+→v×→B)If the proton passes through the space without changing its velocity then two cases can be possible:i) either E=0 and B=0. (Trivial case)ii) or, E≠0 and B≠0 (motion of the proton (v) is perpendicular to the B)

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This section contains multiple choice questions. Each question has 4 choices (a), (b), (c) and (d ) out of which ONE OR MORE may be correct.

A proton moving with a constant velocity passes through a region of space without any change in its velocity. If E and B represent the electric and magnetic fields respectively, Identify which of the following options can be true for the space.

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