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Questions and Answers
Water falls from a height of 60 m at the rate of 10 kg/s to operate a turbine. The losses due to frictional forces are 20% of the input energy. The power generated by the turbine is (g m/s2)
Water falls from a height of 60 m at the rate of 10 kg/s to operate a turbine. The losses due to frictional forces are 20% of the input energy. The power generated by the turbine is (g m/s2)
- 4.8 w (correct)
- 4.8 kW
- 2.4 kW
- 6 kW
Consider the following statements (A) and (B) and identify the correct answer.
(A) Zener diode can be used as voltage regulator.
(B) In unbiased p-n junction, at thermal equilibrium,
drift current is equal to diffusion current.
Consider the following statements (A) and (B) and identify the correct answer.
(A) Zener diode can be used as voltage regulator.
(B) In unbiased p-n junction, at thermal equilibrium,
drift current is equal to diffusion current.
- A is correct but B is incorrect
- Both A and B are correct (correct)
- A is incorrect but B is correct
- Both A and B are incorrect
On rounding off the number 4.645 upto three significant figures, result is
On rounding off the number 4.645 upto three significant figures, result is
- 4.64
- 4.65
- 4.63 (correct)
- 4.60
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