A device called a railgun uses the magnetic force on currents to launch projectiles at very high speeds. An idealized model of a railgun is illustrated in (Eigure 1). A 1.2 V power supply is connected to two conducting rails. A segment of copper wire, in a region of uniform magnetic field, slides freely on the rails. The wire has a 0.97 ml resistance and a mass of 9.0 g. Ignore the resistance of the rails. At some moment, the power supply is switched on. Part A What is the curront? Express your answer with the appropriate units. Figure

A device called a railgun uses the magnetic force on currents to launch projectiles at very high speeds. An idealized model of a railgun is illustrated in (Eigure 1). A 1.2 V power supply is connected to two conducting rails. A segment of copper wire, in a region of uniform magnetic field, slides freely on the rails. The wire has a 0.97 ml resistance and a mass of 9.0 g. Ignore the resistance of the rails. At some moment, the power supply is switched on. Part A What is the curront? Express your answer with the appropriate units. Figure