Selina solutions

Selina solutions

Grade 8

Energy | Numericals

Question 11

Q11) A pump raises water by spending 4\times10^5\ J of energy in 10 s. Find the power of pump.

Solution:

Energy spent = W = 4\times10^5\ J

Time taken = 10 s

Power = Energy / Time

P = \frac{4\times10^5}{10}

= 4\times10^4\ W

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subject-cta

Question 11

Q11) A pump raises water by spending 4\times10^5\ J of energy in 10 s. Find the power of pump.

Solution:

Energy spent = W = 4\times10^5\ J

Time taken = 10 s

Power = Energy / Time

P = \frac{4\times10^5}{10}

= 4\times10^4\ W

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your physics exam ?

Learn from an expert tutor.

Book a free class now
subject-cta
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