Along solenoid with radius b and n turns per unit length has a time-dependent current i(t) in the φ direction. find the electric field at a distance r from the axis, both inside and outside the solenoid. you may assume the quasistatic approximate is valid.

close lines strong magnet less close weaker

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j