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Q1b) DC Machines [ 6 marks ] You are given a 24 V DC motor. When you connect it to a 24 V supply, under no-load conditions it

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de motor 24v V = 24V No = 2000 rpm No Load speed I=50A motor Stall So induced Voltage=o N=o Stalling E=ov back emf at stall BNN, By Relation NE cular E Ž 12V 2 17.28 x 2000 = 1440T.P.m E ibout 336W . VI= 24 x 14 = 3360 Peu - I R = 14 (0.48) = 94.080

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