112 For 0 t 5 s, the current through a device is it = 3t...

1–12 For 0 ≤ t ≤ 5 s, the current through a device is iðtÞ = 3t A.

For 5 < t ≤ 10 s, the current is iðtÞ = 30−3t A, and iðtÞ = 0A for t > 10 s. Sketch iðtÞ versus time and find the total charge flowing through the device between t = 0 s and t = 10s.