Use the following information to answer the next question. Power Supply A device known as a "current balance", balances magnetic force on a conductor with gravitational force on the hanging mass m. The device behaves similar to a N teeter totter and pivots on an axis W - Z. The conventional current within the bal- ance flows from W to X to Y to Z. The power supply is connected to the coil, and is adjusted so that the device is perfectly balanced. E 8. To be perfectly balanced, the magnetic force on the XY part of the conductor is directed and the conventional current in the ammeter A, would be moving A) down, down B) up, down C) up, up D) down, up