Statement (a) is True. The context includes the section 'Magnetic Field due to a Current through a Circular Loop'. For a long circular coil (solenoid), the magnetic field lines inside are in the form of parallel straight lines, indicating a uniform magnetic field. Statement (b) is False. The context mentions the 'earth wire' in the context of safety for metallic appliances. According to standard conventions covered in the topic of domestic electric circuits, the wire with green insulation is the earth wire, not the live wire. The live wire is typically covered with red or brown insulation.