Find the weekly expense on using the iron box, Physics

Assignment Help:

Q. An iron box of 400 W power is used daily for 30 minutes. If the cost per unit is 75 paise, find the weekly expense on using the iron box.

Energy obsessive in 30 minutes          = Power × time in hours

= 400 × ½ = 200 W h

Energy consumed in one week           = 200 × 7 = 1400 Wh = 1.4 unit

Cost / week = Total units consumed × rate/ unit

 = 1.4 × 0.75 = Rs.1.05


Related Discussions:- Find the weekly expense on using the iron box

Explain about the monochromaticity of laser, Explain about the monochromati...

Explain about the monochromaticity of laser. Monochromaticity: The light emitted through a laser is monochromatic, that is this is of one wavelength (colour). Although in ca

Find effectual capacitance, Q. Three capacitors every of capacitance 3 pF a...

Q. Three capacitors every of capacitance 3 pF are connected in parallel. Find effectual capacitance. The effectual capacitance Cp = C1 + C2 + C3 = 9 + 9 + 9 = 27 pF

Determine the magnitude of the acceleration, A ball is thrown vertically up...

A ball is thrown vertically upwards from the ground with a speed of 80 feet/second.  In the English system of units, Determine the magnitude and direction of the acceleration

Explain current and voltage relationship for two resistors, The current/vol...

The current/voltage relationship for two resistors A and B is as shown in Figure. Verify the value of the resistance of every resistor.

Show constant moment arm, Q. Show Constant Moment Arm? The simplest ca...

Q. Show Constant Moment Arm? The simplest case is that of a point mass, and the moment of inertia can be immediately written as                                   I = mR 2 ,

Explain ferromagnetic substance, Ferromagnetic Substance: A substance w...

Ferromagnetic Substance: A substance which behaves as a magnet in presence of a strong magnetic field is known as ferromagnetic substance. E.g. Iron, Nickel

Derive the einstein relation, Derive the Einstein Relation From the la...

Derive the Einstein Relation From the laws of thermodynamics, electrons carry a thermal energy equal to 1/2 kT per degree of freedom. Use this value to derive the Einstein's r

Spectrum, Example of an impure spectrum

Example of an impure spectrum

Classify the flow as laminar or turbulent, A flow rate of 200 gpm of oil wi...

A flow rate of 200 gpm of oil with u=1.5 x 10 -3 lb-sec/ft2 and p=1.7 slug/ft3 occurs in a 4-in pipe. Determine the Reynolds number. Classify the flow as laminar or turbulent. Wha

With all the limitations, With all the limitations, what are the uses of fi...

With all the limitations, what are the uses of fiber optics? There is an ordinary misconception about the quantity of light required for a given task: more light is not essenti

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd