A step-up transformer has 23 turns on the primary coil and 740 turns on the secondary coil. If this transformer is to produce an output of 4000 VV with a 13-mAmA current, what input current and voltage are needed

Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volurge for a gas is much higher than the average volume for a liquid. d)-there is no difference