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

Reflection?, I have a chandelier that hangs in front of my tv, when I look ...

I have a chandelier that hangs in front of my tv, when I look at the tv I can see the chandelier in the tv. What physics phenomenon is this? reflection?

Chemistry in action - detergents, chemistry in action - Detergents A re...

chemistry in action - Detergents A result of high dissolving power, the logically happening water all time consists of dissolved matters, majorly ionic substances. Hard water h

What do you mean by doppler effect, What do you mean by Doppler effect? Der...

What do you mean by Doppler effect? Derive a mathematical expression for the apparent frequency of a note, when source of sound and observer are approaching each other.

Forces, like parallel forsces

like parallel forsces

Population inversion and luminous flux, POPULATION INVERSION and LUMINOUS F...

POPULATION INVERSION and LUMINOUS FLUX: POPULATION INVERSION: The process in which number of electrons (N ) in a higher2 energy state called metastable state of an active medi

Poisson spot, Poisson spot (S.D. Poisson) Originally Poisson predicted...

Poisson spot (S.D. Poisson) Originally Poisson predicted the existence of such spot, and utilized the prediction to revel how the wave theory of light have to be in error to g

Determine the percentage of purity of the sugar, A sugar solution was ...

A sugar solution was formed by adding 80 gm of cane sugar into one liter of water. By observation it is found that it gave an optical rotation of 9.9 0 , when filled

Energy in Bungee Cord, gravitational potential energy = integral of force w...

gravitational potential energy = integral of force with respect to displacement. Find height to drop 59g egg so that it just misses touching ground.

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