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At a hydroelectric power plant, the wate...

At a hydroelectric power plant, the water pressure head is at a height of 300 m and the water flow available is `100 m^(3) s^(-1)`. If the turbine generator efficiency is 60%, estimate the electric power available from the plant `(g = 9.8 ms^(-2))`.

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To estimate the electric power available from a hydroelectric power plant, we can follow these steps: ### Step 1: Understand the Given Data - Height of water pressure head (h) = 300 m - Water flow rate (V) = 100 m³/s - Efficiency of the turbine generator (η) = 60% = 0.6 - Acceleration due to gravity (g) = 9.8 m/s² - Density of water (ρ) = 1000 kg/m³ (approximately) ...
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NCERT ENGLISH-ALTERNATING CURRENT -Exercise
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  2. Suppose the initial charge on the capactor in the above question is 6 ...

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  5. A series LCR circuit connected to a variable frequency 230 V source ha...

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  6. An LC circuit contains a 20 mH inductor and a 50 mu F capacitor with a...

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  7. A coil of inductance 0.50H and resistance 100 Omega is connected to a ...

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  8. Obtain the answers to (a) and (b) Q.13, if the circuit is connected to...

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  9. A 100muF capacitor in series with a 40 Omega resistor is connected to ...

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  10. Obtain the answers to (a) and (b) in Q .15, if the circuit is connecte...

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  11. Keeping the source of frequency equal to the resonating frequency of t...

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  12. A circuit containing an 80mH inductor and a 60muF capacitor in series ...

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  13. Suppose the circuit in Exercise 7.18 has a resistance of 15 Omega Obta...

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  14. A series LCR circuit with L= 0.12H, C=480 nF, and R=23 Omega is connec...

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  15. Obtain the resonant frequency and Q-factor of a series LCR circuit wit...

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  16. Answer the following questions : (a) In any a.c. circuit, is the app...

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  17. A power transmission line feeds input power at 2300 V to a step down t...

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  18. At a hydroelectric power plant, the water pressure head is at a height...

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  19. A small town with a demand of 800 kW of electric power at 220 V is sit...

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  20. Do the same exercise as above with the replacement of the earlier tran...

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