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

What is the magnitude and direction of the velocity, A helicopter is ascend...

A helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground. At the immediate the helicopter is 60 meters above the ground it rele

Earth and moon two are act as a two magnets., Earth and Moon two are act as...

Earth and Moon two are act as a two magnets. and when they rotating the flux changes . then the current produces or not . if not what is the reason? Ans) E.M.F is induced only whe

Successive disintegration, what is succcessive radioactive disintegration

what is succcessive radioactive disintegration

Electromagnetic induction, explain electromagnetic induction

explain electromagnetic induction

What is dual character of light, Q. What is dual character of light? L...

Q. What is dual character of light? Light behaves as particles of energy in the higher energy region as well as as waves in the lower energy region.

Evaluate the skier''s height h, A water skier lets go of the tow rope upon ...

A water skier lets go of the tow rope upon leaving the end oaf jump ramp at a speed of 14.0 m/s. The skier has a speed of 13.0m/s at the highest point of the jump. Ignoring air res

Optical, Ask question #Minimum 4. Determine the strength of a lens needed ...

Ask question #Minimum 4. Determine the strength of a lens needed to allow a person with a far-sighted eye with a near point of Pnar= 2.0 m (near point means the closest distance f

The nature of anode rays depends upon, The nature of anode rays depends upo...

The nature of anode rays depends upon: (1) Nature of electrode (2) Nature of residual gas (3) Nature of discharge tube (4) All the above Ans:(2) Nature of residual

Define dipole movement and write its applications, Dipole moment = product ...

Dipole moment = product of magnitude of charge on any ONE OF THE ATOM and the distance between them.(e.d) Large Application in electrostats.To differentiate among Polar and non pol

Physical quantity and units, Q. Match the units to the physical amount that...

Q. Match the units to the physical amount that is measured in those units. Answer: The major purpose of this question is to familiarize you with the jargon "physical quant

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages