You are presented with the question "Electrical current running through a wire causes an increase in what?" and the following answer choices: 
- warmth
 - speed
 - Joules
 - water current
 - energy
 - toughness
 - distance
 - lightning

Now knowing that electrical current running through a wire causes that wire to heat up and then the total current and Joule heating are solved, choose the best answer.


 

   Joules      