A solar cell system is to suppmy 1050 kWh/month. The average output is 15 percent of the rated power. The rated power must be

Related MCQs

• Five people must be lifted in an elevator to a distance of 100 m. The work is found to be 341.2 kJ and the gravitational acceleration is 9.75 m/s2. The average mass per person is
• For a closed system, the difference between the heat added to the system and the work done by the system is equal to the change in
• The average pressure on the walls of a vessel will be doubled if the
• For maximum specific output of a constant volume cycle
• If a heat engine gives an output of 3 kW and input is 10,000 J/s the thermal efficiency of the engine will be
• Brayton cycle cannot be used in reciprocating engines even for same adiabatic compression ratio and work output because
• In a Carnot cycle the process which must be carried out at extremely slow speed is
• Two gases X and Y having the same temperature T, the same pressure P and the same volume V are mixed. If the mxiture has the volume V and temperature T, then the pressure of the mixture must be
• Power required for the engine is
• A Carnot refrigerator extracts 100 kcal of heat per minute from a cold room which is maintained at - 15?C and it is discharged to atmosphere at 30?C. The horse power required to run the unit would be