Do you remember the ohm´s law?

After watching the above video , answer the following questions:

1. - Which are the two types of current? What are the differences between them?

2. - Which units do we use to measure: Voltage (V o E), Current (I) and Resistance?

3. - How can we determine the value of R, V (E) o R? Try to explain with your own words how you´d calculate each value.

4. - How (with which unit) do we measure power?

5. - What does the term watts refers to?