Question

An office worker uses an immersion heater to warm 230 g of water in a light, covered, insulated cup from 20°C to 100°C in 3.50 minutes. The heater is a Nichrome resistance wire connected to a 120 V power supply. Assume that the wire is at 100°C throughout the 3.50 min time interval. Specify a diameter and a length that the wire can have. length m diameter m What volume of Nicrome is required to make this wire? cm3

Answer 1