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Home» class 9»Science» Chapter 10: Work and Energy

A lamp consumes 1000 J of electrical energy in 10 s. What is i... - Science

Question

A lamp consumes 1000 J of electrical energy in 10 s. What is its power?

Answer

Given:
Energy (W) = 1000\text{ J}
Time (t) = 10\text{ s}

Formula:
Power (P) = \frac{\text{Work Done}}{\text{Time Taken}}

Calculation:

P = \frac{1000}{10}
P = 100\text{ W}

 

Answer:
The power of the lamp is 100\text{ W}.