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

Explain electricity and static electricity, Explain Electricity and static ...

Explain Electricity and static electricity Electricity - study of stationary (static) or moving charges Static Electricitiy (Electrostatics) - electric charges at rest

Electrostatistic, define electrostatistic

define electrostatistic

Difference between fission and fusion, Difference between Fission and Fusio...

Difference between Fission and Fusion Fission Fusion 1. Heavy metal is divided int

Uses of radio isotopes, Uses of Radio Isotopes: Industries: 1. Radio...

Uses of Radio Isotopes: Industries: 1. Radio active isotopes are used to detect leakage in pipes. 2. It estimates weak and tear machine tools. 3. It is used to check t

Unit and Dimensions, Physics is one of the types of science. Science works ...

Physics is one of the types of science. Science works according to scientific method . The scientific method accepts only logic, reason, and experimental evidence to tell betw

Describe the magnetic moment of a bar magnet, Describe the magnetic moment ...

Describe the magnetic moment of a bar magnet. What is its direction? Can you find two magnetic field lines intersecting? Why?

On what factors does the amount of optical rotation depend, Q. On what fact...

Q. On what factors does the amount of optical rotation depend? The amount of optical rotation relay on (a) Thickness of crystal (b) Density of the crystal or else concent

Find the atomic number and the mass number, Q. The radioactive isotope 84Pa...

Q. The radioactive isotope 84Pa214 undergoes a successive disintegration of two α decays and two β decays. Find the atomic number and the mass number of the resulting isotope.

With the help of relevant diagrams define ppm, With the help of relevant di...

With the help of relevant diagrams, define the following terms: (i) Pulse-position modulation (PPM) (i) Pulse-duration modulation (PPM)

By which transformer cores are laminated, Transformer cores are laminated w...

Transformer cores are laminated with (A) Low carbon steel. (B) Silicon sheet steel. (C) Nickel Alloy steel. (D) Chromium sheet steel. Ans: Transformer co

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages