Which of the following statements is not true about measuring the resistance of a component that is connected in a circuit?

1. Turn off the power supply.
2. Disconnect one of the component leads from the circuit.
3. Make sure the power supply is on.
4. Connect the leads across the component.

An air standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes. 1-2 isentropic compression 100 kpa and 22°c to 600 kpa 2-3 v=constant heat addition to 1500 k 3-4 isentropic expansion to 100 kpa 4-1 p=constant heat rejection to initial state (a) show the cycle on p-v and t-s s (b) calculate the net work output per unit mass (409 kj/kg) (c) determine the thermal efficiency (47.9%)