P31_017

# P31_017 - 17. (a) It should be emphasized that the result,...

This preview shows page 1. Sign up to view the full content.

17. (a) It should be emphasized that the result, given in terms of sin(2 πft ), could as easily be given in terms of cos(2 πft )orevencos(2 πft + φ )where φ is a phase constant as discussed in Chapter 16. The angular position θ of the rotating coil is measured from some reference line (or plane), and which line one chooses will aFect whether the magnetic ﬂux should be written as BA cos θ , BA sin θ or BA cos( θ + φ ). Here our choice is such that Φ B = BA cos θ . Since the coil is rotating steadily, θ increases linearly with time. Thus, θ = ωt (equivalent to θ =2 πft )i f θ is understood to be in radians (and ω would be the angular velocity). Since the area of the rectangular coil is A = ab , ±araday ’slawleadsto E = N d (
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

Ask a homework question - tutors are online