Hey future physicist! Let’s dive deep into the electrifying world of electric current. Ever wondered what happens when those charges flow? Let's decode!

What it is: When electric current flows through a resistor, it gives off heat. Imagine your device charger after you’ve been charging your phone for a long time. Yup, that warm feeling is this effect in action!

Real-world example: Think of an electric kettle. When you switch it on, electric current flows through a coiled resistor inside. This resistor heats up due to the electric current, boiling your water and making it perfect for that cup of tea or cocoa!

What it is: When current flows, it can create a magnetic field around it. Also, if you change a magnetic field near a conductor, you can induce an emf (which is just a fancy term for voltage) in the conductor. Magic? Nah, it's physics!

Real-world example: Electric trains use the magnetic effect. Ever heard of the Maglev train? It floats above the tracks! The electric current in the rails creates a magnetic field, which pushes against another set of magnets on the train. Result? A floating train!