Portable Generator For Sale

Electric Generator?

A generator uses a coil that has 140 turns and a 0.35 T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. Assuming that each turn of the coil is a square (an approximation), determine the length of the wire from which the coil is made.

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1. E = mu n A dB/dt, where mu is the permittivity of space, 1E-8; n is the number of turns, A is the area of the coil, dB/dt is the change in magnetic field, which will have its peak value when the winding wire is moving transverse to the field, and the peak value of E will be 120 sqrt(2). Solve for A and take the square root.