Physics 1302A/B- Midterm Exam Guide - Comprehensive Notes for the exam ( 20 pages long!)

• School: Western University
• Department: Physics
• Course: Physics 1302A/B
• Professor: Jan Cami

Document Summary

Surface charge density: =(cid:3044)(cid:3002, c = (cid:3002)(cid:3023, e = (cid:3089)(cid:2868)a = v/d, c capacitance, v volume, d distance between plates. I = (cid:3031)(cid:3044)(cid:3031)(cid:3047) = (cid:3044)(cid:3047: a = (cid:2024)r2 for a wire. I current: a area, j does(cid:374)"t depe(cid:374)d o(cid:374) area, i depe(cid:374)ds o(cid:374) r (cid:894)v = ir(cid:895). Oh(cid:373)"s law: v = ir, v voltage. I current: therefore, vh = hvb = (cid:3003)(cid:3041)(cid:3044)(cid:3047) t length. Origin of the magnetic field: ferromagnetic material: magnetized permanently, paramagnetic material: magnetized temporarily, r distance from the wire to where b is calculated, b = (cid:3091)(cid:3116)(cid:2872)(cid:3095) (cid:3031)(cid:3039) (cid:3051) (cid:3045)(cid:3118, b = (cid:3091)(cid:2868)(cid:2870)(cid:3095)(cid:3045) Torque on a magnetic dipole: a area, b = (cid:3091)(cid:3116)(cid:3091)(cid:2870)(cid:3095)(cid:3051)(cid:3119, = x b, b magnetic field, torque, dipole. Integral of the magnetic field on any closed circuit created by an electric current is proportional to current encircled by the path. B = 0i: small length of wire, b = (cid:3091)(cid:3116)(cid:2870)(cid:3095)(cid:3045)