How does a type S plug fuse keep someone from putting the wrong size fuse in a panelboard?

1. What is the rate of flow of electric current if it is available at 120V and has a resistance of 15 ohms? 2. What is the difference between alternating current and direct current? 3. What are the various ways electric power can be produced? 4. What fuels are used to power fossil-fuel electric-generating plants? […]