this is a very simple problem on a single long solenoid and the concentric long solenoids. Consider a long solenoid with n= 100 looks per deci- meter of lenght ( 1 decimeter Cam) = 10 ' m) and loon teary- section S= 100 camp. 1 ) Calculate the self - inductance L ner wut lenght of the solenoid. [20 points] 2) Consider to insert a second long solenoid inside the first solenoid and coaxial with it Cof. Sig HA5. 4). The second solenoid har n= 500 loon nee I'm of lenght and look cross- section S = 50 cm. Calculate the mutual- inductance M per unit lenght between the tree solenoids and discuss it's sign . [20 points]I : Current on larger solenoid 32 11 I' : Current on smaller solenoid S: Larger solenoid S:smaller solenoid = tique H5.4