Two samples of an ideal gas are initially at the same temperature and pressure. they are each compressed reversibly from a volume v to volume v/2, one isothermally (sample 1), the other adiabatically (sample 2). part a in which sample is the final pressure greater?

In adiabatic case

Explanation:

Let us suppose Initial condition

be the initial pressure and volume of gas

and

be the final pressure

In Isothermal case

Temprature is costant therefore

PV=constant

for adiabatic case

and we know is greater than 1

therefore In adiabatic case pressure will be high.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: