Question

Please answer both questions

A certain inductor is formed from a circular coil consisting of 10 turns of wire. When a current of 2.5 A is sent through this coil, it experiences a total magnetic flux of 5.0 x 10-7 Wb. a) (4 pts.) What is the inductance of this coil? b) (4 pts.) What magnetic energy does this inductor contain at this current? c) (4 pts.) What is the magnitude of the self-induced emf in this coil if this current is reduced to 0 over a period of 0.050 seconds? A proton traveling due north enters a region of space that contains both a magnetic field and an electric field. The electric field lines point due west. It is observed that the proton continues to travel in a straight-line due north. In which directions do the following quantities point? Ē a) The electric force: Ľ. b) The magnetic force: E c) The magnetic field:

Answer 1

Number of twins na jo current through the coll I = 205 A magnetic fiux $s 5*107 Wb (ay Inductance of co11.( , magnetie fruns on current through the wine (s) can be related La Ne I 2x10 6 ta 10x58107 205 4. Inductomce of the coil. = 2*176 H B magnetic energy of Inductor UŽLI 2 y - 156 m 2 592 1 2 6.25% 156 Inducion stoned 60 25x176 J magnetic energy magnitude of induced emf in this - 2010 6M (2,5--0 @= Lodi ar oros Orfix 103 v Oelmy magnitude of included emf in furs coil - Oolmu RN foree along west am is is along 2 elearre fonce acts on profon Es eft -ee jy . electric force ackson profon along west, Take txay along East, magnetic -ve yaxis velocity of the electron is along Northa and tanke electric fonce acts on the trey ordion towards are lowest North and but as brootong continues rvey ay is alone south to travel in a sto time towards north so there must be equal and opposite foro ec along east. actts acts on the proton so magnetic fonce towards to East. so that proton continues to move fowards_noroghe Magneto Ponce ook om profon towards - East, ū velocity of prooform towards Nowth so mognetic field must be pointing out of the page. er Scanned with CamScanner