1. An appliance is rated at 600 Watts when supplied by a 120 volt electrical supply. a) What current will ow through it (in amps)? b) What is its resistance in Ohms? 2. A heater and a lamp are connected in parallel to a 120 volt source. If the heater draws 8 amps and the lamp draws 2 amps, what is the resistance of each? What is the power used in each? What power is supplied by the source? 3_ In household wiring, the outlets of two rooms are placed in parallel on a single circuit with a 120 Volt source. How many 100 Watt light bulbs could you run on a circuit that had a 15 amp circuit breaker (maximum of 15 amps total)? 4. A 120 volt household circuit has a 20 amp circuit breaker (maximum). A 600-Watt heater and a 609 light are connected to this source in parallel a) How many amps flow through the 600-Watt heater? b) What is the current through the 609. light? 0) What is the resistance ofthe 600-Watt heater? d) Mat is the minimum resistance R which could be used as a third appliance without tripping the 20 amp circuit breaker? 5. An x-ray machine operates at 200 kilovolts with a current of 10 m. This power must be produced by a transformer which raises the voltage from 220 volts to 200 kilovolts. The power going into and out oflhe transformer is the same. How much current must flow in the 220 volt line to operate the x-ray machine