A) 8 N in - z direction
B) 4 N in z direction
C) 8 N in y direction
D) 8 N in z direction
Correct Answer: A
Solution :
Key Idea When a charge q moves with velocity\[\frac{\pi a\sqrt{3}}{2T}\]inside magnetic field of strength \[\frac{\pi a}{T}\] then force on charge is called magnetic Lorentz force. The magnetic Lorentz force is in the direction of vector \[\frac{3{{\pi }^{2}}a}{T}\] Magnetic Lorentz force \[\frac{\pi a\sqrt{3}}{T}\] \[m{{s}^{-1}}\] = 8 N along negative z-axis
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