What is power? How do you differentiate kilowatt from kilowatt hour? The Jog Falls in Karnataka state are nearly 20 m high. 2000 tonnes of water falls from it in a minute. Calculate the equivalent power if all this energy can be utilized? ( $g = 10 m s^{- 2}$ )

Open in App

Solution

Power is the rate of doing work.
Kilowatt is the unit of power and kilowatt hour is the unit of energy.

Given : Height, $h = 20 m$ , and $M a s s, m = 2000 \times 10^{3} k g = 2 \times 10^{6} k g$

We know that,
Power = Energy utilized / time taken
=> $P o w e r = \frac{m g h}{t} = \frac{2 \times 10^{6} \times 10 \times 20}{60} W$
=> $P o w e r = 6.67 * 10^{6} W = 6.67 * 10^{3} k W$

Suggest Corrections

Similar questions

Q. What is power? How do you differentiate kilowatt from kilowatt hour? The Jog Falls in Karnataka state are nearly 20 m high. 2000 tonnes of water falls from it in a minute. Calculate the equivalent power if all this energy can be utilized? (

g = 10 m s^{- 2}

)

Q. What is power? How do you differentiate kilowatt from kilowatt hour? The jog falls in Karnataka state are nearly 20m high. 2000 tonnes of water falls from it in a minute.

Q. The Jog falls in Karnataka state are nearly

20

m high.

2000

tonnes of water falls from it in a minute. Calculate the equivalent power if all this energy can be utilized

(g = 10 m s^{- 2})

Q. Jog Falls in Karnataka state are nearly 20 m high. 2000 tonnes of water falls from it in a minute. Calculate the equivalent power if all this energy can be utilized ?

(g = 10 m s^{2})

In a hydroelectric power plant, water falls at a rate of $1000 k g s^{- 1}$ from a height of $100 m$ . Assuming that 50% of the energy of falling water is converted into electrical energy, calculate the power generated. (Take $g = 10 m s^{- 2}$ )

Join BYJU'S Learning Program

What is power? How do you differentiate kilowatt from kilowatt hour? The Jog Falls in Karnataka state are nearly 20 m high. 2000 tonnes of water falls from it in a minute. Calculate the equivalent power if all this energy can be utilized? (g=10ms−2)

Power is the rate of doing work. Kilowatt is the unit of power and kilowatt hour is the unit of energy. Given : Height, h=20 m, and Mass,m=2000×103kg=2×106kg We know that, Power = Energy utilized / time taken => Power=mght=2×106×10×2060W => Power=6.67∗106W=6.67∗103kW

What is power? How do you differentiate kilowatt from kilowatt hour? The Jog Falls in Karnataka state are nearly 20 m high. 2000 tonnes of water falls from it in a minute. Calculate the equivalent power if all this energy can be utilized? ( $g = 10 m s^{- 2}$ )