Physics Moving Charge and Magnetism Force and Torque on a Current Carrying Conductor MCQ (Single Correct)

A stream of electrons is projected horizontally to the right. A straight conductor carrying a current is supported parallel to electron stream and above it. If the current in the conductor is from left to right then what will be the effect on electron stream

A
The electron stream will be pulled upward
B
The electron stream will be pulled downward
C
The electron stream will be retarted
D
The electron beam will be speeded up towards the right

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The correct answer is:
B

Magnetic field due to current through a linear conductor from the left to right at a point below the conductor is acting horizontally upwards. The electron beam moving from left to right will cause the current right to left. The force on the electrons will be vertically downwards according to Fleming's hand rule.

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