The Direction of the Magnetic Field in a Certain Region

question 9

Multiple Choice

The direction of the magnetic field in a certain region of space is determined by firing a test charge into the region with its velocity in various directions in different trials.The field direction is:

• A)one of the directions of the velocity when the magnetic force is zero
• B)the direction of the velocity when the magnetic force is a maximum
• C)the direction of the magnetic force
• D)perpendicular to the velocity when the magnetic force is zero
• E)none of the above

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