The current in a conductor varies as follows: during the first 10sec, there is a linear change from zero to 5.5 amp; on the next 15 sec, the current is constant at 5.5 amp, and for the third period of 20 sec, the current decreases linearly to 2.5 amp. Determine charge (coulomb) from t = 0 to a. t = 10s, b. t = 15s, c. t = 25s.

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The current in a conductor varies as follows: during the first 10sec, there is a linear change from zero to 5.5 amp; on the next 15 sec, the current is constant at 5.5 amp, and for the third period of 20 sec, the current decreases linearly to 2.5 amp. Determine charge (coulomb) from t = 0 to
a. t = 10s,
b. t = 15s,
c. t = 25s.
d. Also, solve for the total charge transferred in the elapsed time of 45 sec and draw the charge graphical representation with respect to time (t).

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