physics

posted by .

1. Outlets of two rooms are placed in parallel on a single circuit (120 volts). How many 100 watt light bulbs could you run on a circuit that had a 15 amp circuit breaker (max of 15 amps total)

need help setting up problem??

Each 100 W lamp draws I = P/V = 100/120 = 0.83 Amps, if 120 volts is applied to it. The number of lamps it takes to use a total of 15 Amps is therefore ___

Don't be confused by the number of rooms. And don't assume the lamps are in series. They are all in parallel from a power line with a single circuit breaker.

Similar Questions

1. electrical circuit

When a second light bulb is wired into an electric circuit already containing one light bulb, the first one dims. What kind of circuit is the light bulb wired into?
2. Physics

The following appliances are being used simultaneously: toster oven, TV, computer, three 100 W light bulbs and an iron. Yet the circuit breaker (15 A) has not tripped. Does that necessarily mean that not all of these appliacnces are …
3. physics

Please check my work here: Resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. The circuit voltage is 180 volts. Find: a)the voltage of the parallel circuit b)the voltage across the …
4. physics

Several light bulbs, each of resistance 1.5 Ω, are connected in a series across a 120 V source of emf. If the current through the circuit is 2 A, how many light bulbs are there in the circuit?
5. Science

If the voltage is110 volts and the total resistance is 10, what is the measure of the current in the circuit?
6. Science

One light bulb in a string of lights goes out this causes all other lights in string to go out. This is example of A. Resistor B. parallel circuit C. Closed circuit***** D. Series circuit When a switch is turned from the off to the …
7. I NEED HELP WITH THIS

Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios below indicate what changes (if any) take place A. Total resistance of the circuit B. Total current of the …
8. Physics !

Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios below indicate what changes (if any) take place A. Total resistance of the circuit B. Total current of the …
9. physics

1. A typical household circuit is capable of carrying 15.0 Amps of current at 120 V before the circuit breaker will trip. How many 1500-W hair dryers can run off one such circuit?
10. Physics

I need to understand how to calculate the final 2 steps of this problem. Appreciate any help: For a circuit, consisting of a single battery and two light bulbs in parallel, what is the total resistance of the circuit if each light …

More Similar Questions