For a transistor phase shift oscillator the shift in each R-C section is 60°. Design the oscillator if the frequency of the oscillation is 1 kHz and determine the current gain of the transistor for the loop gain is equal to 1.

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