Final answer:
The unit of current is amps (A), not to be confused with the unit of energy used in electric bills, which is kilowatt-hour (kWh). Passing a 2.00 A current through a 1 Ω resistor rated at 1 watt will cause it to overheat or burn out because it exceeds the resistor's power rating.
Step-by-step explanation:
The unit of current is amps (A). The term 'ampere' is often shortened to 'amp', and this is the standard unit for measuring electrical current. An ampere is defined as the amount of electric current that will produce an attractive force of 2.7 x 107 newton per meter of separation between two parallel wires carrying the current. In practical terms, it is the flow of one coulomb of charge passing a given point in one second. When discussing electric bills, the unit of consumption recorded is kilowatt-hour (kWh), which represents energy, not current. If a 1 Ω resistor rated for 1 watt is subjected to a 2.00 A current, it will likely overheat or burn out because it is receiving more power (4 watts) than its rating (1 watt), and to prevent such accidents one should use appropriate resistors and incorporate safety devices like fuses or circuit breakers.