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A solenoid of inductance L with resistan...

A solenoid of inductance `L` with resistance `r` is connected in parallel to a resistance `R`. A battery of emf `E` and of negligible internal resistance is connected across the parallel combination as shown in the figure. At time `t = 0`, switch `S` is opened, calculate
(a) current through the solenoid after the switch is opened.
(b) amount of heat generated in the solenoid.

Text Solution

Verified by Experts

The correct Answer is:
`(E )/(r )e^(-(R+r)/(L)); (b) (E^(2)L)/(2r(R+r))`
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