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Help with last two questions please !
Electric Car A small electric car overcomes a 242 N friction force when traveling 30,8 km/hr, The electric motor is powered by ten 12.0 v batteries connected in series and is coupled directly to the wheels whose diameters are 50,5 cm. The 304 armature coils are rectangular, 11.0 cm by 14.8 cm, and rotate in a 0.510 T magnetic field. How much current does the motor draw to produce the required 2.42x101 A You are correct. Your receipt no. is 162 1041 what is the back emf? 8.55x 10 V You are correct. no. is 162-4792 How much power is dissipated in the coils? what percent of the input power is used to drive the car (do not enter units)? Submit Answer Incorrect. Tries 1/8 eredous Ties Send Feedback This discussion is closed.
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Power dissipated =Fy=(2.42x30.8 W 2.070.45 watt solvtion,

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