Substances may become charged when:

Dean is hunting at a location where Earth’s magnetic field is 3.0 x10^-4 T. He shoots by mistake at a werewolf decoy, and the silver bullet he is using acquires a charge of 1.2 x10^-10 C as it leaves his gun at 300 m/s, perpendicular to Earth’s magnetic field. What is the magnetic force acting on the bullet?

A 10.0-m-long high-tension power line carries a current of 20.0 A perpendicular to Earth’s magnetic field of 5.5x10^-5 T. What is the magnetic force experienced by the power line?

A hydroelectric plant in Niagara Falls sends 3000 V to the transformer in a substation that steps it up to 120,000 V for transmission to homes in New York City. If the primary coil contains 2000 turns, how many turns are there in the secondary coil of the step-up transformer?

A doorbell only needs 15 volts to work, which is created each time it is pressed. If the magnetic flux created by the solenoid created by the wire being coiled 20 times is 6.2 x10^-5 how long was the solenoid in motion?