Physics
What is electromagnetic induction?
A bar magnet is moved through a coil at a speed of 2 m/s, inducing a current of 0.5 A. If the speed is increased to 4 m/s, what is the expected induced current assuming all other factors remain constant?
If the current through a solenoid is doubled, what happens to the magnetic field strength inside the solenoid?
A coil is placed in a magnetic field that is increasing in strength pointing upwards. Using the right-hand rule, what is the direction of the induced current when viewed from above?
Which application of electromagnetic induction is responsible for power distribution in electrical grids?