AN ELECTRIC GRYSER IS KNOWN TO CONSUME 2.2 UNITS OF ELECTRICAL ENERGY PER HOUR OF ITS USE.IT IS DESIGNED TO WORK ON THE MAIN VOLTAGE OF 220V.
a)what is the power rating of the device?
b)what is the current flowing through the device when it is connected across the main?
c)what is the resistance of the device?
d)does the resistance of the device remain constant during its working?
e)which of the two has higher volts?-a)100w,220v lamp b)10w,220v night lamp
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