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 are quarter wave plates, What are a quarter wave plates? Get the expre...

What are a quarter wave plates? Get the expressions for its thickness in terms of refractive indices for E-ray, O-ray and wavelength?

Maximum range, Maximum Range Suppose a cannonball launched from a canno...

Maximum Range Suppose a cannonball launched from a cannon at 3 various launch angles - 30-degrees, 45-degrees, and 60-degrees. The launch speed is held constant; just the angle

Explain inertial frame of reference, INERTIAL FRAME OF REFERENCE:  "A f...

INERTIAL FRAME OF REFERENCE:  "A frame of reference which is not being accelerated and it might be at rest or moving with uniform velocity is known as inertial frame of referen

Determine the shear force, Determine the Shear Force in kN rounded to 1 DP ...

Determine the Shear Force in kN rounded to 1 DP and Bending Moment in kN.m rounded to 1 DP at point C in the beam when the couple at the left hand end is P49 kN.m and the point loa

Define magnetic field half way between axis and outside edge, A copper rod ...

A copper rod which is 1 centimetre in diameter carries a current of 5 amps.  The current is distributed uniformly throughout the rod.  The magnetic field half way between the axis

Electricity generation processes, 1) Clean coal technology describes new el...

1) Clean coal technology describes new electricity generation processes that are expected to have high efficiencies, be able to minimise environmental impacts, including SO 2 , NOx

Young''s double slit experiment (ydse), Monochromatic light (single wavelen...

Monochromatic light (single wavelength) falls on two narrow slits S1 and S2 which are very close together acts as two coherent sources, when waves coming from two coherent sources

Pauli exclusion principle, Pauli exclusion principle (W. Pauli; 1925) N...

Pauli exclusion principle (W. Pauli; 1925) No two similar fermions in a system, like electrons in an atom, can have an equal set of quantum numbers.

The area of a plate assuming a two-plate construction, A capacitor is to be...

A capacitor is to be constructed so that its capacitance is 0.2µF and to take a p.d. of 1.25kV across its terminals. The dielectric is to be mica which, after allowing a safet

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