A Long, Straight, Vertical Segment of Wire Traverses a Magnetic

question 43

Multiple Choice

A long, straight, vertical segment of wire traverses a magnetic field of magnitude 2.0 T in the direction shown in the diagram. The length of the wire that lies in the magnetic field is 0.060 m. When the switch is closed, a current of 4.0 A flows through the wire from point P to point Q.
-What is the magnitude of the magnetic force acting on the wire?

• A)0.12 N
• B)0.24 N
• C)0.48 N
• D)67 N
• E)zero newtons

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