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(Solved): An air-filled toroidal solenoid has a mean radius of 14.5 cm and a cross-sectional area of 5.05cm^(2 ...



An air-filled toroidal solenoid has a mean radius of 14.5 cm and a cross-sectional area of 5.05cm^(2) as shown in (Figure 1). Picture this as the toroidal core around which the windings are wrapped to form the toroidal solenoid. The current flowing through it is 11.7 A , and it is desired that the energy stored within the solenoid be at least 0.385 J . Figure Part A What is the least number of turns that the winding must have? Express your answer numerically, as a whole number, to three significant figures. View Available Hint(s) turns Incorrect; Try Again; 5 attempts remaining


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