Expert Answers

In this circuit how does the brightness of the identical bulbs compare? Which bulb draws most current? Least current?

If the power for each bulb is proportional to I2 (current square) & the power consumed by bulb C is 900 watts, what'll be the power consumed by bulb A & bulb B compared to bulb C? a) 2 time b) 4 times c) ½ times d) ¼ times
Values of power consumed? ________________________

The bulbs were burned for 10hrs daily. What will the everyday use of each bulb in Kilo-watt-hrs. (Energy = power x Time, kilo- watt=1000 watt). Energy for
a) Bulb A ______________
b) Bulb B ________________
c) Bulb C _______________
d) Total _______________

What'll be the daily operating cost for each lamp? (Power utility rate= 50cent/kWh)
a) Bulb A ______________
b) Bulb B ________________
c) Bulb C _______________