By what factor does the stored magnetic energy change

Reference no: EM131213338

Consider two magnetically linked coils on a common magnetic core and identical number of turns. Initially,
both coils carry the same current.

(a) By what factor does the stored magnetic energy change if the current in one coil is doubled, keeping the other unchanged ?

(b) If the two currents are maintained identical all the time (say, by connecting the coils in series, by how much should they be increased to double the total stored magnetic energy?

Reference no: EM131213338

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