Part C: Longer Problems (5 points each part) [10 points total] 7. A conducting bar of length 2.0m moves on two horizontal frictionless rails with a resistor that is connected at the left ends between the two rails. A constant force of magnitude 1.0 N moves the bar at a uniform speed of 2.0 m/s to the right through a magnetic field-B that is directed into the page. Draw the diagram (a) If the resistor in the loop is 8.00, what is the direction and the value of the induced current in the conducting bar? (b) What is the magnitude of the external B-field? (Show your work including diagrams, equations, and clear analysis to receive full credit) Page 7 8 -+ MacBook Air