Calculate the energy consumed by 120W toaster in 20 minutes.

Asked by Last Modified  

9 Answers

Learn Science +1 Class IX-X Tuition

Follow 18
Answer

Please enter your answer

Ashok Reddy Penthala

Expert in IIT NEET entrance exams

Energy= power×time P =120 W =120 J/s Time t = 20 min = 20×60 second= 1200 second E = 120× 120 = 144000joul E =144×1000 joul =144 kilo joul
Comments
Dislike Bookmark
POWER=120W TIME=20 min=1200sec Energy=Power*Time E=120W*1200sec E=144000J E=144000J=144Kilojoule
Comments
Dislike Bookmark

Tutor

Total energy is the product of power and time... But we have to convert both to the same unit. 20 min= 20*60sec= 1200 sec.. Energy= 1200*120 J =144000 J
Comments
Dislike Bookmark

Tutor

120 W is 120 Joules per second, and 20Minutes is 1200 seconds. Hence the total energy consumed is 1200seconds*120W = 144000 Joules or 144 Kilo Joules.
Comments
Dislike Bookmark

Energy E=P.t where time t in second E=120.20.60=144000 Watt.sec=144000joule E=144 kilojoule
Comments
Dislike Bookmark

Maths Trainer with 23 years of experience

Given: Power=120W Time=t=20min=20X60Sec =1200Sec Power P = Work W ( or Energy E)/ Time taken t Then, Energy E= Power P × Time t So, Energy E= 120 W× 1200sec = 144000 J = 144 KJ.
Comments
Dislike Bookmark

Tutor

Silvering of a mirror is the process to convert a plain glass into mirror.After silvering the glass don't allow light to refract through it..So we get a reflecting mirror
Comments
Dislike Bookmark

Teacher

Energy consumed will be 120 x 20 x 60 = 144000 J or 144 kJ
Comments
Dislike Bookmark

Tutor

Energy = power / time. = 120/120 = 1 Joule
Comments
Dislike Bookmark

View 7 more Answers

Related Questions

Online teaching is here to stay,how can we add maximum eye contact with learners who like the lessons?
Best way is to make the class more interesting and innovative to grab students' attention and asking for their opinion/answer or something time by time.
Kiran G
What are Newton's laws?
Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. It may be seen as a statement about inertia, that objects will...
Meenakshi S.
State the formula, lens formula and power of lens.
The diopter is the unit of measure for the refractive power of a lens. The power of a lens is defined as the reciprocal of its focal length in meters, or D = 1/f, where D is the power in diopters and f...
Venu
0 0
5

If we light a torch then diverging beam of light are produced. But we use concave mirror in the torch to attain parallel beam of light. So what is the connection between this?
Concave mirror is use to get focused and long distant parrallel light and this ia an application of concave mirror. As above diagram you can see the passage of parallel light comming out after reflection...
Richika
Name two allotrapes of carbon.
Diamond, Garphite, Coal
Neeta

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Explain the functions of the following parts of the eye : (a) cornea (b) iris (c) pupil (d) ciliary muscles (e) eye-lens(f) retina (g) o
a. Cornea: The cornea is the outermost layer of the eye and is primarily responsible for focusing the light that comes into our eyes. The cornea provides 66% of the optic power that the overall eye has....

D. Mukherjee

1 0
0
The Miracle of Birth

Ayushi S.

0 0
0
What Are Oleochemicals?
>> switching from petrochemicals to oleochemicals. >>Oleochemicals are chemical compounds derived from natural fats and oils that can be used as raw materials or as supplemental materials...

Debraj Paul

0 1
0
Chains of Life

Harsh

0 0
0
Maths Behind the Lens

Azumthulla Gilledmanda

0 0
0

Recommended Articles

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Meet Raghunandan.G.H, a B. Tech Tutor from...

Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...

Read full article >

Meet Sandhya R, a B.Sc tutor from Bangalore

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Quest Academy - Institute of the month

Quest Academy is a professional Bangalore based NEET and JEE (Main + Advanced) training institute. The academy was incorporated in 2015 to cater to the needs of students, who aim to crack competitive exams by connecting with the best brains around. The institute helps students enhance their skills and capabilities through...

Read full article >

Find Class 10 Tuition near you
Class 10 Tuition in Delhi
Class 10 Tuition in Bangalore
Class 10 Tuition in Hyderabad
Class 10 Tuition in Kolkata
Class 10 Tuition in Chennai
Class 10 Tuition in Mumbai
Class 10 Tuition in Pune
Class 10 Tuition in Lucknow
Class 10 Tuition in Noida
Class 10 Tuition in Gurgaon
Online Tuition Class 10

Looking for Class 10 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you