2. The power dissipated by an electric appliance is 60 W. What is the current flowing through it if it is connected to a power source of 220 V?

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2. The power dissipated by an electric appliance is 60 W. What is the current flowing through
it if it is connected to a power source of 220 V?
3. A water heater draws a 20 A from a 120 V power source 8 m away. What is the minimum
cross section of the wire that can be used if the voltage applied to the heater is not to be
lower than 110 V?
Transcribed Image Text:2. The power dissipated by an electric appliance is 60 W. What is the current flowing through it if it is connected to a power source of 220 V? 3. A water heater draws a 20 A from a 120 V power source 8 m away. What is the minimum cross section of the wire that can be used if the voltage applied to the heater is not to be lower than 110 V?
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