1. The problem statement, all variables and given/known data 8. An electric current in a conductor varies with time according to the expression I(t) = 100 sin (120*pi*t), where I is in amperes and t is in seconds. What is the total charge passing a given point in the conductor from t = 0 to t = 1/240 s? 2. Relevant equations 3. The attempt at a solution I have attempted to substitute the values of t into the equation and use the difference, but I do not feel that was the correct way. Next, I attempted to perform a definite integral, but I get 0 for both numbers.