A uniform beam of positively charged particles is moving with a constant velocity parallel to anothe

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4.Moving Charges and Magnetism

normal

A uniform beam of positively charged particles is moving with a constant velocity parallel to another beam of negatively charged particles moving with the same velocity in opposite direction separated by a distance $d.$ The variation of magnetic field $B$ along a perpendicular line draw between the two beams is best represented by

A

B

C

D

Solution

Currents are in the same direction. So at the middle $\mathrm{B}=0$

Standard 12

Physics

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