Below a negatively charged particle is pictured moving north east through a magnetic field that points straight up. What is the direction of the force on the negatively charged particle at the moment it is pictured?
A
northeast
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B
southeast
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C
southwest
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D
northwest
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E
up
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Solution
The correct option is D northwest
When we put our hand in such a way that index finger upward direction, middle finger is in south-west direction then our thumb is directed in north-west direction. Hence the direction of the force is in northwest direction.