Two light bulbs rated at 60W/120V are connected in parallel. What is the total power used...

Question

Question

Two light bulbs rated at 60W/120V are connected in parallel. What is the total power used by the bulb ?

Answer 1

Answer #1

Total power=p1+p2(if connected in parallel)

=2*60=120 w

Answer 2

Answer #2

apply power = V^2/R

R = 120/(60*60)

R = 0.0333 Ohms

Power in parallel = 60*60/120

= 30 Watts

Add a comment

Answer 3

Similar Homework Help Questions

4. Consider a 60W light bulb plugged into a 120V socket, and a 100W light bulb...

4. Consider a 60W light bulb plugged into a 120V socket, and a 100W light bulb plugged into another 120V socket Recall that a bulb's brightness is related to the amount of power (in watts) that is dissipated as heat and light. a Through which light bulb is more current passing? b. Which light bulb filament has more resistance? c. If these light bulbs were connected together in series into the same 120V outlet, which light bulb will be brighter?...
Three identical light bulbs R. R, and R, are connected across a 120V power source as...

Three identical light bulbs R. R, and R, are connected across a 120V power source as shown in the figure. Which light bulb is the brightest? R 120 V Rg R
Two light bulbs are connected in parallel, and then connected to a battery, as shown in...

Two light bulbs are connected in parallel, and then connected to a battery, as shown in Fig. 4.51(a). You observe that bulb 1 is twice as bright as bulb 2. Assuming that the brightness of a bulb is proportional to the power dissipated in the bulb’s resistor, which bulb’s resistor is larger, and by what factor? The bulbs are now connected in series ,as shown in Fig.4.51(b). Which bulb is brighter, and by what factor? How bright is each bulb...

The powers of two light-bulbs are 60 W and 125 W when connected in parallel across...

The powers of two light-bulbs are 60 W and 125 W when connected in parallel across a 130-V source. What is the power of the bulb that will output less power when the two light-bulbs are connected in series with the same source?
The powers of two light-bulbs are 40 W and 115 W when connected in parallel across...

The powers of two light-bulbs are 40 W and 115 W when connected in parallel across a 110-V source. What is the power of the bulb that will output less power when the two light-bulbs are connected in series with the same source?
Two light bulbs have resistances of 40 2 and 802. The two light bulbs are now...

Two light bulbs have resistances of 40 2 and 802. The two light bulbs are now connected in parallel across the 12 V supply. Find the current through each bulb. Express your answer in amperes separated by a comma. VASO 140, 180 = A Submit Request Answer Part E The two light bulbs are connected in parallel across the 12 V supply. Find the power dissipated in each bulb. Express your answer in watts separated by a comma. LOAD ?...

Two 120V light bulbs, one 25W and one 200W, were connected in series across a 240V...

Two 120V light bulbs, one 25W and one 200W, were connected in series across a 240V line. It seemed like a good idea at the time, but one bulb burned out almost instantaneously. Which one burned out, and why?
(a) What is the resistance of ten 100-W light bulbs connected in parallel? (b) in series?...

(a) What is the resistance of ten 100-W light bulbs connected in parallel? (b) in series? The resistance of a 100-W, 120-V light bulb is 144 Ohms.
1. Eight bulbs are connected in parallel to a 280 V source by two long leads...

1. Eight bulbs are connected in parallel to a 280 V source by two long leads of total resistance 2.0 12. If 250 mA flows through each bulb, what is the resistance of each? Extra If 200 mA flows through each bulb, what fraction of the total power is wasted in the leads?

5. Are light bulbs brighter when they're connected in series or in parallel? 6. Consider a...

5. Are light bulbs brighter when they're connected in series or in parallel? 6. Consider a whole circuit. When the power supply is set to 12V, does the power supply provide more current to the whole circuit when it consists of 3 light bulbs connected in parallel or 3 light bulbs connected in series?