A lamp consumers 1000 J of electrical energy in 20 seconds. What it its power?

Asked by Last Modified  

3 Answers

Learn Science +1

Follow 3
Answer

Please enter your answer

Maths Tutor

1000j/20second=50watt
Comments

power=work/time work=1000j time=20sec power=1000j/20sec=50 watt
Comments

Training Centre

Power=work/time Therefore Power= 1000/20 = 50 J/s or 50 Watt
Comments

View 1 more Answers

Related Questions

Calculate the mass of 0.5 mole of N2 gas (mass from mole of molecule).
Molar mass of N2 is 28(since atomic weight of nitrogen is 14and forN2=14*2). So mass of 1 mole of N2 is 28g.Therefore mass of 0.5 mole is 28/2 =14g
Neha
What would happen if there was no friction on the Earth?
if there is no friction then not any work possible on earth because every thing do work by contact
Deepak
0 0
7
If K and L shells of an atom are full, then what would be the total number of electrons in the atom?
10 electrons and if there are only k and l shell then the element will be helium
Rekha
0 0
5
If energy is neither created nor destroyed then from where do we get energy?
It changes from one form of energy to other form or energy. Eg: like a ball falling from height have potential energy initially when at rest and when it keeps on falling it turns into kinetic energy
Rakesh
0 0
5
What are alloys?
It is mixture of metals example steel,bronze. Bronze is alloy of aluminium,nickel or zinc and manganese. Steel is made of iron,chromium also small percentage of carbon,nickel,
Nasar
0 0
6

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

Ask a Question

Related Lessons


Law of Motion physics class 9 by sunil Sir
Law of motion Sir Isaac Newton was one of the greatest scientists and mathematicians that ever lived. He was born in England on December 25, 1643. He was born the same year that Galileo...

Conservation of energy for a falling body
Law of conservation of energy - Energy can neither be created nor be destroyed; it can only be transformed from one form to another. Consider a body of mass m placed at A. h = AB is the height of...


How Small are These Particles of Matter?
The particles of matter are very small –they are small beyond our imagination!!!! Let us observe an activity, Activity: Take 2-3 crystals of potassium permanganate and dissolve them in 100...

Recommended Articles

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

With the mushrooming of international and private schools, it may seem that the education system of India is healthy. In reality, only 29% of children are sent to the private schools, while the remaining head for government or state funded education. So, to check the reality of Indian education system it is better to look...

Read full article >

E-learning is not just about delivering lessons online. It has a much broader scope that goes beyond manual paper or PowerPoint Presentations. To understand the reach of E-learning and how the whole process works in developing the Educational system, we will discuss a few points here. Let us find out how this new learning...

Read full article >

Learning for every child starts from a very young age. While the formal methods include school curriculums and private lessons, the informal methods include dancing, music, drawing, and various fun-filling activities. Playing games and practising these types of activities helps the children get out of boredom and...

Read full article >

Looking for Class 9 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you