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  3. 125 100 075 050 025 00 100 1000 magnetizing intensity...

Question: 125 100 075 050 025 00 100 1000 magnetizing intensity...

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1.25 1.00 0.75 0.50 0.25 0.0 100 1000 Magnetizing intensity H(A turnsm) Fig. 6 The magnetization curve. 6. The linear machine as shown has a magnetic flux density of 0.5 T directed into the page, a resistance of 0.5, a bar length -1.0 m, and a battery voltage of 100 V. To start this machine, simply close the switch. a-100 What is the initial force on the bar at starting? What is the initial current flow? What is the no-load steady-state speed of the bar? If under no-load steady-state conditions, a force of 25 N is applied in the direction of motion, what is the new steady-state speed? What is the efficiency of the machine under these circumstances? Is this machine a motor or a gencrator now? If under no-load steady-state conditions, the bar is loaded with a force of 25 N opposite to the direction of motion, what is the new steady-state speed? What is the efficiency of the machine under these circumstances? Is this machine a motor or a generator now? a) b) c) d)

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