A solenoid has length L = 1.23m and inner diameter
d=3.55cm and it
carries a current i = 5.57 A, It
Consists of five close-packed
layers, each with 850 turns along
length L. what is B at its centre?​

What is special about a dc circuit ?

Why is the use of carbon-14 limited

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%)