00:01
We are given an electric circuit diagram here with identified points a and b that are separated by a distance of 6 meters.
00:10
There is a rate of 5 -culum per second current that's flowing in the circuit within 120 seconds.
00:20
We are also informed that the work done in transferring the charge from a to b is 6 joules, and that is per cullum.
00:30
We also know that the total electric work done in transferring the charges from a to b is 3 ,600 jules.
00:40
We are to determine the magnitude of the force or electric force that is needed in moving one coulum of charge from a to b.
00:51
So take note, in moving one column of charge from a to b, how much force is needed.
00:58
So to answer the question, we need to revisit the fundamental definition of work, any kind of work or any work done by any kind of force.
01:10
So this is telling us here that work of a certain force is equivalent to the product of the parallel or the anti -parallel component of that force times the distance moved by the particle.
01:25
So in this particular case here, the force is obviously electric force and the distance traveled by each column of charge.
01:38
So we have here six meters because that's the distance between a and b.
01:43
We know this.
01:44
We don't know the force needed, but we know the work done per charge...