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

Illustrate the electric field lines of a point charge q, The electric field...

The electric field E because of a point charge at any point near it is explained as where q is the test charge and F is the force acting on it. What is the physical significance of

Dot product, Dot Product A Easy demonstration of the relation among the...

Dot Product A Easy demonstration of the relation among the dot product of 2 vectors and the angle among them. Move the slider to view the changes.

Forces, what is the difference between pulling and pushing forces

what is the difference between pulling and pushing forces

Explain motion in 2 dimensions, Explain Motion in 2 Dimensions When mot...

Explain Motion in 2 Dimensions When motion occurs in two dimensions, position, displacement and distance, speed, velocity and acceleration can be described using the x-y plane.

What is a wave motion, Wave motion is the motion in which the particle/matt...

Wave motion is the motion in which the particle/matter remains at the point where it is.  But the disturbance/energy gets transfer from one point to the other.  The particle just o

Magnetic lines of flux, Magnetic lines of flux   A line of flux is ...

Magnetic lines of flux   A line of flux is a line indicating the direction in which a free north pole would travel, if placed in the field at that point. Alternatively it

Photodissociation, is there any way to photodissociate explosives or bullet...

is there any way to photodissociate explosives or bullet so that it can not fired

Making spheres with surface tension, Making spheres with surface tension ...

Making spheres with surface tension Search a glass jar and fill it about two-thirds full of commercial alcohol. With a medicine dropper place some drops of oil in the alcohol a

Gravitation and satellites, What is the speed of a 232 kg satellite in an a...

What is the speed of a 232 kg satellite in an approximately circular orbit 645 km above the surface of Earth?

Determine magnetic field among two poles of electric motor., (a) A 400mm le...

(a) A 400mm length of conductor carrying a current of 25A is situated at right-angles to a magnetic field among two poles of an electric motor. The poles have a circular cross

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