Consider a battery-powered led flashlight that draws 100 ma when switched on: a. if this operates for 3h, how much charge is delivered? b. if this is driven by a 9v battery (during the 3h), how much energy is used? c. how much power is consumed while the flashlight is switched on? 2) we will often deal with fixed voltage and current in this course, but it’s important to remember that charge, current, and voltage can each be a time-varying function. determine the current i(t) flowing through a resistor if the charge flow q(t) is defined as: a. q(t) = 7 c b. q(t) = (3t + 8) mc c. q(t) = 0.3[1 – e-0.4t] pc 3) complete problems 1.18, 1.19, 2.11, and 2.12 from the end-of-chapter problems in the textbook.