A current of 0.35 A flows in a wire for 4 minutes.
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A current of flows in a wire for minutes. How much charge passes through it, and how many electrons is this? An electron carries .
Need a reminder? The key ideaShow
Current is the charge passing each second: , in amperes (). One electron carries . The conventional current goes from to outside a cell; electrons drift the other way.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. The time. .
Step 2. The charge. .
Step 3. The electrons. .
Answer: , carried by electrons.
Discussion (0)
Log in to join the discussion.
Loading…