Resistance, Length and Cross-sectional Area of a Wire
 

Resistance, Length and Cross-sectional Area of a Wire problem 1


Let’s compare the current through a light bulb, dryer, and water heater. The current through the bulb is 0.3 A, through the dryer, 2 A, and through the boiler, 10 A. Arrange the resistances of the listed devices from the smallest to the largest. Note that the mains voltage in the household is 220 V.


 

material editor: Gabriel Amakhabi