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

Mass transfer operation - distillation column design , A mixture of methano...

A mixture of methanol and water is to be separated in a new separation unit and you are required to provide a report detailing the design and costing of a distillation column with

Define laterite stone, Define Laterite stone. Laterite is called sedime...

Define Laterite stone. Laterite is called sedimentary rock. It has porous and spongy structure and can be simply quarried in blocks. It have high percentage of oxide of ion and

Discuss the carnot cycle of operation, Discuss the Carnot cycle of operatio...

Discuss the Carnot cycle of operation and reduce the expression for efficiency. Carnot engine is works on the principle of Carnot cycle made up of four stages are represented as sh

Characteristics of simple harmonic motion, a)  Amplitude : It is the main ...

a)  Amplitude : It is the main value of distance of the particle from its equilibrium position. b) Time period (T): Smallest time interval after which the oscillatory motion

What is power, What is Power? Power is how fast work is done or energy ...

What is Power? Power is how fast work is done or energy is used.  Example: Remember that cheeseburger (~1/4 pound) I lifted up one meter to do one joule of work? If you now

Explain the focal length of the convex lens, Convex lens can be used as a m...

Convex lens can be used as a magnifying glass. When an object that is 15.0 cm from the lens has an image that is exactly 55 times the size of the object, what is the focal leng

Magnitude of the acceleration, A car travels along a horizontal circular cu...

A car travels along a horizontal circular curved road that has a radius of 600 m. If the speed is uniformly increased at a rate of 2000 km>h2, determine the magnitude of the accele

Seeing your whole body in a flat mirror, Is it possible to see your whole b...

Is it possible to see your whole body in a flat, planar mirror that is LESS THAN half your height if the mirror is at an angle? (i.e. not parallel to your body)

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