Electric Circuits Legacy Problem #3 Guided Solution

The electric current is the rate at which charge flows past a point on an electric circuit in a given amount of time. In equation form, it can be said that I is equal to Q divided by T, where I represents the current in amperes, where Q represents the quantity of charge flowing past the point in units of coulombs, and T represents the time over which this charge flows in units of seconds. Here in this question, we're given the current of various devices, and we're asked to find the time that it would take for 1,000,000, or 1 times 10 to the 6th, coulombs of charge to flow through that device. And so we need to take our equation I equal Q over T and rearrange it so that we can solve for time. That means you'll have to multiply both sides of the equation by T to get the T out of the denominator, and then you'll have to divide through by I to get T by itself, that giving you T equal Q over I, where the Q again is 1.0 times 10 to the 6th, and you simply need to divide that by the current in units of amperes. When you do, you'll get a time period in units of seconds, and if you wish, you can divide by 60 twice to convert to minutes, and then to hours, and then you can divide by 24 if you wish to convert to days, and if you wish, you can divide by 365.25 to convert to years. One of the answers that you see listed there should be the answer that you receive. And in all instances, it's rounded to two significant digits.