1. The problem statement, all variables and given/known data If the current in a wire is given by the following functions of time, what charge passes a given point from t=0 to t=10 seconds? (i is in Amps and t in seconds). Show units for charge. i(t) = 4t + 5 2. Relevant equations Nothing really 3. The attempt at a solution 0 seconds: 5A 10 seconds: 4x10 + 5 = 45A Therefore 50C have passed through the wire in total. But the answer at the back for my question says 250C, I don't get it.