10. If the cost of operating for 24 hours a lamp requiring 1A on a 220V line is 26.4 Naira, the chargesrate is? A. 24.2 N per kWh B. 4.2 N per kWh DITETU C. 24.4 N per kWh D. 4.40N per kWh

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

When does your body conduct current more readily?

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)