Question

Q4

QA You have a Solenoid 20 con in diamečer and 10 cm long containing 505 turns You Also have a 100-mF capacitor and a 40-v battery You use the bartery to fully charge the capacitor. Then you connect each end of the capacitor to each end of Solenoid to form! an Le circuts. A what is the charge on the capacitor 2 seconds after the circuit is connected ? A more reclastic version of the circuit includes the resistance of Soleroid, and form an RLC circuit Assume for fare b E har the solenoid has a resis {ance of 0.5-ohm. Bl what is the charge on the capacitor 2 seconds af ter the circuit is connected ?

Answer 1

By solving RLC circuit we can get the answer

Page No Date do a a da thi di C dt = 2²R dt dt L d2q + R da ta atz dt С we get. Solving (1) Rt q (t) = 9o e 2L cosut t= l N²A ~ A = cross sectional Area of solenoid liven > r=10cm= Oelm ..Ca 100mA l = 10cm=.o'lm .R=0.32 Mo= 40x10d . W² - 1 - w= LC. JLC t= loom it 0.5X2 cos 2401 Jorixo-1 2. 20 912)= 9o e 2x0 alt to q (2) - 139.50 %