Electrical energy costs, If electrical energy costs 12

Electrical energy costs

Reference no: EM13660760

If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, then what would the following events cost?

a) Burn a 60 W light bulb for 24 h straight.

b) Operate an electric oven for 6.0 h if it carries a current of 20.0 A at 220 V.

Reference no: EM13660760

Questions Cloud

What is the minimum luminous flux the lights should deliver : A public school law requires a minimum illumination of 160 lx on the surface of all students’ desk. If the lights are 2.0 m above the desks, what is the minimum luminous flux the lights should deliver?

What is the pressure change in water problem : What is the pressure change in water going from a 3.0- cm-diameter pipe to a 2.1- cm-diameter pipe if the velocity in the smaller pipe is 6.5 m/s?

What is the fundamental frequency of this pipe : A particular organ pipe can resonate at 264 Hz, 440 Hz, and 616 Hz, however not at any other frequencies between 264 and 616 Hz. (a) Is this an open or closed pipe? (b) What is the fundamental frequency of this pipe?

Compute buoyant force experienced by steel shell : Compute the buoyant force experienced by a steel shell totally submerged in fresh water.(The radius of the shell is70.0 cm and its mass is 1990kg.) What will occur if the shell is released (while experiencing this buoyant force)?

Electrical energy costs : If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, then what would the following events cost? Burn a 60 W light bulb for 24 h straight. Operate an electric oven for 6.0 h if it carries a current of 20.0 A at 220 V.

A submarine submerges to a depth : A submarine submerges to a depth of 144 meters. Compute the pressure on the submarine. State your answer in both Pascal and atmospheres.

Green light strikes a single slit at normal incidence : Green light (λ = 536 nm) strikes a single slit at normal incidence. What width slit will produce a central maximum that is 2.80 cm wide on a screen 1.70 m from the slit?

Oil slick floating on water-index of refraction of water : A scientist notices that an oil slick floating on water when viewed from above has many dissimilar rainbow colors reflecting off the surface. She aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). The index of..

An isolated charged capacitor has horizontal plates : An isolated charged capacitor has horizontal plates. If a thin dielectric is inserted a short way between the plates will it move left or right when it is released?

User Account

All Pages