1 A switch has been opened after 35ms of operation This mean
1.
A switch has been opened after 3.5ms of operation. This means 8mA current flowed in a 60 H inductor circuit for this time duration. What EMF is induced in the inductor?
| 1. | A switch has been opened after 3.5ms of operation. This means 8mA current flowed in a 60 H inductor circuit for this time duration. What EMF is induced in the inductor? | 
Solution
E=L di / dt
= 60(8*10^-3/3.5*10^-3)
= 60(8/3.5)
= 137.14 Volts

