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

Define rocket in drag (princeton), Define Rocket in Drag (Princeton)? A...

Define Rocket in Drag (Princeton)? A rocket has an effectual frontal area A and blasts off with a constant acceleration a straight up from the surface of the Earth. a)

What is conduction band, The higher power level band is called as the condu...

The higher power level band is called as the conduction band. (i) It is also called as empty band of minimum energy. (ii) This band is partially filled by the electrons. (

Geometric optics, why does our image in the mirror not appear upside down

why does our image in the mirror not appear upside down

Explain frictionless horizontal surface, A block of mass 10 kg is attached ...

A block of mass 10 kg is attached to the end of a horizontal spring with spring constant k = 1200 Nm-1. The block is assumed to be sitting on a frictionless horizontal surface.

Flux, as flux = E.A and flux density is equal to flux/A then why A/A cannot...

as flux = E.A and flux density is equal to flux/A then why A/A cannot e cancelled ?

Electromagnetism and electronics, the energy stored in the capacitor decrea...

the energy stored in the capacitor decreases with time as the capacitor discharges. After how many time constant is this stored energy one forth its initial value

Find the statement true or false and why, A bathtub is filled to the brim w...

A bathtub is filled to the brim with ice cold water and has an iceberg floating in it. It's a big bathtub the iceberg, of course, project above the surface of the tube when the ice

Stationary-orbits, According to uncertainity stationary orbits are accepted...

According to uncertainity stationary orbits are accepted or not?please give reason Ans) According to uncertainity stationary orbits are not accepted because according to station

Moving the bar magnet rapidly away from the loop, Question: A wire loop...

Question: A wire loop smears in a horizontal plane. Alongside the loop is a vertical bar magnet south end up. The bar magnet is divide by the plane of the loop. A person is shi

Extrapolate the experimental data to predict the pressure, Water at 20°C fl...

Water at 20°C flows through a long, straight pipe. The pressure drop is measured along a section of the pipe of length 1.3 m as a function of average velocity through the pipe. Res

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