Isabella used an induction stove and explains to her neighbour that due to shortage of LPG one must utilize other sources that are available to produce heat energy; being a Physics teacher i Isabella, explains that the oil compaines are trying their best to meet the demands for LPG and that as a good citizen one must use other sources wherever feasible. Isabella uses an induction stove having a value of 7 H inductor and the flow of current from 10 A to 7 A in $9\times { 10 }^{ -2 }$ seconds.
(a) In the above, what is the quality, you find in the Physics teacher ?
(b) Calculate the emf generated in the above ?
(a) Concern for the nation, cost economic attitude, and sharing knowledge
(b) $[\varepsilon =-L{}^{dI}/{}_{dt}=233.3V]$