When plugged into a 120-Volt outlet, a light bulb consumes 300 joules of energy over a 5 second time period. The power of the light bulb is ____ Watts. a. 0.0167 b. 0.50 c. 2.0 d. 2.50 e. 60 f. 600 g. 1500 h. 7200

6. A string of eighteen identical Christmas tree lights are connected in series to a 120-V source. The string dissipates 64.0 W. a. What is the equivalent resistance of the light string? b. What is the resistance of a single light? c. What power is dissipated by each lamp?

A 10 000 HF capacitor is charged to its maximum operating voltage of 32 V. The charged capacitor is discharged through a filament lamp. The flash of light from the lamp lasts for 300 ms. a. Calculate the energy stored by the capacitor. b. Determine the average power dissipated in the filament lamp. 6.

Midterm Practice A conventional light bulb running at 40 W for 4 hours per day. How much energy does it spend in one month?   Select one: a. 480.0 kwh b. 4.800 kwh c. 0.480 kwh d. 4800 kwh e. 48.00 kwh

5. An electric circuit contains a resistance R and a capacitor C in series, and a battery supplying a time-varying electromotive force (or voltage) V(t). The charge q on the capacitor therefore obeys the following differential equation: Rdq + 2 = V(t). dt Assuming that initially there is no charge on the capacitor, and given that V(t) Vosinut, where V₂ and w are some constants, find the charge on the capacitor as a function of time. = Hint: You may have to do integration by parts twice to evaluate the following inte- gral: feRc sin(wt)dt.

Compare the energy consumption of two commonly used items in the household. Calculate the energy used by a 1.00 kW toaster oven, Wtoaster , which is used for 5.20 minutes, and then calculate the amount of energy that an 11.0 W compact fluorescent light (CFL) bulb, Wight, uses when left on for 9.00 hours. kWh Wtoaster kWh Wight =

When a capacitor is fully charged, the current through the capacitor in a direct-current circuit is Select one: а. at its maximum value. b. greater than the current in a resistor that is farther from the battery than the capacitor. С. zero. d. equal to the current in a resistive circuit in parallel with the capacitor circuit. е. zero if it is the only capacitor, but maximum if there is another capacitor in series with it.

If a lamp has resistance of 120 W when it operates at 100 W, what is the applied voltage?  a. 110 V b. 120 V c. 125 V d. 220 V

A 10 000 µF capacitor is charged to its maximum operating voltage of 32 V. The charged capacitor is discharged through a filament lamp. The flash of light from the lamp lasts for 300 ms. a. Calculate the energy stored by the capacitor. b. Determine the average power dissipated in the filament lamp. 6.

How much energy (in units of kWh) does a 824-W electric motor use in 29 hours of operation? O a. 38.950 Ob. 19.834 Oc. 23.896 O d. 29.392 O e. 34.171