AIIMS2008Physics-Magnetic Effects of Current
AIIMS 2008 Physics Magnetic Force on Moving Charges MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Two charges +q and -q are attached to the two ends of a light rod of length L, as shown in figure. The system is given a velocity v perpendicular to magnetic field B̅. The magnetic force on the system of charges and magnitude of force on one charge by the rod, are respectively
A
zero, zero
B
zero, qvB
C
2qvB, 0
D
2qvB, qvB
Correct Answer
Option B
Detailed Explanation
Net charge on system = 0
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