Tubing cutters for copper tube are only available in one stlye true or false

what is called periodic function give example? Plot the output which is started with zero degree for one coil rotating in the un

marta [7]

Answer:

A periodic function is a function that returns to its value over a certain period at regular intervals an example is the wave form of flux density (B) = sin wt

Explanation:

A periodic function is a function that returns to its value over a certain period at regular intervals an example is the wave form of flux density (B) = sin wt

attached to the answer is a free plot of the output starting with zero degree for one coil rotating in a uniform magnetic field

B ( wave flux density ) = Bm sinwt and w = 2 $\pi$ f = $\frac{2\pi }{T}$ rad/sec

3 0

2 years ago

Was rachel and ross on a break

yaroslaw [1]

Answer:

yes they were on a break

Explanation:

3 0

2 years ago

Use Excel, MatLab or a similar program to plot carrier thermal velocity as a function of temperature for both electrons and hole

Sidana [21]

Answer:

Solution 2:

The thermal energy of any particle is given as = $\frac{1}{2}mv^{2}$

where m= Effective mass of the particle,

v= Velocity of the particle

The average kinetic energy is given as = $\frac{3}{2}KT,$

where K= Boltzmann Constant

T= Temperautre of the particle

At equilibrium,

1/2 mv² = 3/2 KT

Hence, v= $\sqrt{\frac{3KT}{m}}$

As, effective mass ratio is calculated with respect to rest mass of electron,

melectron = 0.11 * 9.11 *10-31 kg

mhole = 0.35 *9.11 *10-31 kg

K = 1.38 × 10-23 m2 kg s-2 K-1

Plotting, over a range of temperature of 0 K to 400 K, we obtain the attached Graphs (attached).

Solution 3:

The above two curves plotted are not identical as seen. From the same value of Temperature, and under identical conditons, the Thermal velocity solely depends on effective mass ratio. And it is inversely proportional to effective mass ratio. More the effective mass ratio, less the thermal velocity and flatter the slope of the curve and vice versa. As, the mass ratio of holes is more than that of electrons, the curve of electrons has a steeper slope than that of holes. Hence, the curves are not just identical.