FIGURE 23-11 -A Conducting Bar Moves Along Frictionless Conducting Rails Connected to Rails

question 32

Multiple Choice

FIGURE 23-11
-A conducting bar moves along frictionless conducting rails connected to a 4.00-Ω resistor as shown in Figure 23-11. The length of the bar is 1.60 m and a uniform magnetic field of 2.20 T is applied perpendicular to the paper. What is the applied force required to move the bar to the right with a constant speed of 6.00 m/s?

• A) 8.60 N
• B) 9.30 N
• C) 10.6 N
• D) 12.6 N
• E) 18.6 N

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