Problem 8: A motor operating on a 260 V source has a 170 V back emf...

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Problem 8: A motor operating on a 260 V source has a 170 V back emf at operating speed and draws a 13 A current. Part (a) What is its resistance in Q? Numeric A numeric value is expected and not an expression. R = Part (b) What current does it draw when it is first started in A? Numeric A numeric value is expected and not an expression. I¡ = Problem 9: A rectangular Amperian loop resides in the plane of the image, and a uniform magnetic field, B, fills the region. The direction of the magnetic field and the direction in which loop is traversed are clearly indicated. Part (a) The right-hand rule relates the orientation of a planar Amperian loop to the direction of the positive normal to the loop. Drag the appropriate image of a right hand to the area inside the Amperian loop that relates the loop orientation to the direction of the normal vector. DragNDrop Part (b) Based upon your response to Part (a), which of the following best represents the direction of the normal vector to the oriented loop? Schematic Choice Part (c) Which of the following best describes the magnetic flux through the Amperian loop? Multiple Choice : 1) 2) X 3) ΦΜ ΦΜ = 0 B <0 PM > 0 Problem 8: A motor operating on a 260 V source has a 170 V back emf at operating speed and draws a 13 A current. Part (a) What is its resistance in Q? Numeric A numeric value is expected and not an expression. R = Part (b) What current does it draw when it is first started in A? Numeric A numeric value is expected and not an expression. I¡ = Problem 9: A rectangular Amperian loop resides in the plane of the image, and a uniform magnetic field, B, fills the region. The direction of the magnetic field and the direction in which loop is traversed are clearly indicated. Part (a) The right-hand rule relates the orientation of a planar Amperian loop to the direction of the positive normal to the loop. Drag the appropriate image of a right hand to the area inside the Amperian loop that relates the loop orientation to the direction of the normal vector. DragNDrop Part (b) Based upon your response to Part (a), which of the following best represents the direction of the normal vector to the oriented loop? Schematic Choice Part (c) Which of the following best describes the magnetic flux through the Amperian loop? Multiple Choice : 1) 2) X 3) ΦΜ ΦΜ = 0 B <0 PM > 0

Answer rating: 100% (QA)

Working Part a working out the resistance r Voltage v 260 v cur... View the full answer