Find the total heat produced in the loop of the previous problem during the interval 0 to 30 s if the resistance of the loop is 4.5 mΩ.
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Total Heat Produced is
Explanation:
Resistance of the coil, R =
The heat produced is found by taking the sum of the individual heats produced.
Thus, the net heat produced is given by
H =
(a) Heat developed for the first 5 seconds:
Emf induced, e =
Current in the coil,
=
There is no change in the emf from 5 s to 20 s and from 25 s to 30 s.
Thus, the heat developed for the above mentioned intervals is given by
Heat developed in interval t = 25 s to 30 s:
The current and voltage induced in the coil will be the same as that for the first 5 seconds.
Total heat produced:
=
=
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