180CHAPTER 20 20.6The magnetic field generated by the current in the solenoid is ()720250410TmA15.0A2.36100.200 mBnIµπ−−==×⋅=×Tand the flux through each turn on the solenoid is 2225cos4.0010m2.3610Tcos02.9610T m4BBA2θπ−Φ=×°=× ⋅20.7(a) The magnetic flux through an area A may be written as ( )coscomponent of perpendicular to BBA=⋅(AThus, the flux through the shaded side of the cube is )2235.0 T2.510m3.110BxΦ= ⋅ =⋅×=×2T m⋅±²³±±²(b) Unlike electric field lines, magnetic field lines always form closed loops, without beginning or end. Therefore, no magnetic field lines originate or terminate within
This is the end of the preview. Sign up
access the rest of the document.