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

Asked by Last Modified  

3 Answers

Learn Science +1 Class IX-X Tuition

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

Sun: Largest source of energy is made up of?
Organic molecules.hydrocarbons.fossil fuels.hydrogen and carbon mainly.
Profile Photo
Deepika T.
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
Profile Photo
Neha
Why when a ball dropped from a height, its speed continuously increased?
the potential energy gets converted into kinetic energy so obviously yes. as velocity is the only variable , as the height decreases, there should be a corresponding increase in the velocity. (potential energy = mgh, kinetic energy = 1/2 mvxv
Profile Photo
Ravikumar
0 0
View Comments8
Which has more number of atoms, 100 grams of sodium or 100 grams of iron (given, atomic mass of Na = 23 u, Fe = 56 u)?
100 gm of sodium will have (Given mass / molar mass )x Avogadro's Number = (100/23) x 6.022 x 10^23 = 2.62 x 10^24 atoms 100 gms of Iron will have (100/56) x 6.022 x 10^23 = 1.07 x 10^24 atoms So 100 gms of Sodium will have more atoms.
Profile Photo
Nasar
0 0
View Comments5
What parents see in a good teacher,when they hire home tutor for their child's benefit?
Parents must ensure the following qualities in the home tutor for their child's benefit - 1. A verified teacher- The tutor should have a valid ID proof and address proof. It ensures safety of child. 2....
Profile Photo
Sushma

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

Ask a Question

Related Lessons

Which harmonic mode of the pipe is resonantly excited by a 430 Hz source?
A pipe 20 cm long is closed at one end. Which harmonic mode of the pipe is resonantly excited by a 430 Hz source? Will the same source be in resonance with the pipe if both ends are open?
Profile Photo

Introduction to current electricity
In our day to day life, we find the use of electricity for all our purposes. What is the concept behind the generation of current, where does it come from, is a matter of wonder to all us! Let us get introduced...
Profile Photo



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