Give a short answer or mathematical expression for the following: (a) write down the maxwell's equations. which equation(s) must be modified if the magnetic monopoles (b) define magnetization in terms of magnetic dipoles in matter. what is its unit? (c) what is coulomb gauge? use it to show the normal component of the vector potential discovered? are must be continuous at the boundary of two materials. (d) use one of the equations in (a) (which one? ) to show that b is perpendicular to the wave vector k in a plane electromagnetic wave (easiest to use complex notation).

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

What can you increase the strength of an electromagnet by

The device shows the relative humidity at 22°c. what’s the water vapor density if the maximum water vapor in air at this temperature is 20 grams/cubic meter? a device showing that at 22 degrees celsius the relative humidity is 58%. a. 11.6% b. 11.6 g/m3 c. 12.76% d. 12.76 g/m3 reset next