TS EAMCET Medical 2018 May 3 Shift 1Paper

Ail air core solenoid of length 0.5 m and cross sectional area 25 × 10−4 m2 has 500 turns. When the electrical circuit of the winding is opened, the current falls to zero from 10A in π × 10−3 seconds. The back emf induced in the circuit in ‘V’ is
(Thepermeability of free space is given as 4π × 10−7 Tm/A)