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3 years ago

Define a diode in semiconductor

Physics

1 answer:

kolbaska11 [484]3 years ago

3 0

Explanation:

A diodes are semiconductors offering a low resistance in one direction which allows current to flow through and opposes the movement of current in the other direction.

Diodes allow for only a unidirectional flow and conduction of electric current.

Unlike insulators, they can conduct electric current but in one direction.

Unlike conductors, they cannot conduct in both directions.

Most diodes are usually made of silicon and they find a wide range of application in modern electronics.

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Metalloids brainly.com/question/3023499

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Find distance traveled when a donkey took 20 sec to fall from a cliff at 9.8 m/s2

musickatia [10]

Distance= speed * time
So multiply speed and time to get the value of distance
20*9.8 =196 meters

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4 years ago

A hockey puck is at the top of a 10 m long slippery slope, that makes an angle of 30° to the horizontal and leads down to a flat

aleksklad [387]

To solve this problem, we will first apply the concepts related to trigonometric relations and then the conservation of energy. By the trigonometric relations we will find the height for the calculation of the potential energy. For the conservation of energy we will give the relationship between the kinetic energy and initial potential with the final kinetic energy. Therefore, first the height by trigonometric relation we have

$h = Lsin\heta$

$h = 10sin30\°$

$h = 5m$

Then by conservation of energy

$E_i = E_f$

$mgh+\frac{1}{2}mv_i^2 = \frac{1}{2}mv_f^2$

Here,

m = mass

g = Gravitational acceleration

v = Velocity

Rearranging to find the final velocity,

$v_f = \sqrt{v_i^2+2gh}$

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$v_f = 11.1m/s$

Therefore the correct answer is D.

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3 years ago

An object from a certain height falls freely. which of the following happens PE and KE when the object is half on its way down

Leto [7]

Answer:

A. Loses PE and gains KE

Explanation:

Statement is incomplete. Complete statement of problem is:

1. An object from a certain height falls freely. Which of the following happens to PE and KE when the object is half on its way down?

A. Loses PE and gains KE

B. Gains PE and loses KE

C. Loses both PE and KE

D. Gains both PE and KE

If we neglect the effects of any conservative force, the application of the Principle of Energy Conservation is reduced to a sum of gravitational potential ( $U_{g}$ ) and translational kinetic energies, measured in joules. That is:

$U_{g,1}+K_{1} =U_{g,2}+K_{2}$ (Eq. 1)

Let assume that an object falls from a height $h$ with a speed of zero. By definitions of gravitational potential and translational kinetic energies the previous is expanded. If final height is the half of initial value, then:

$m\cdot g\cdot h = 0.5\cdot m\cdot g\cdot h +K_{2}$ (Eq. 1b)

$K_{2} = 0.5\cdot m\cdot g\cdot h$

$K_{2} = 0.5\cdot U_{g,1}$

In a nutshell, translational kinetic energy is increased at the expense of diminishing gravitational potential energy. The correct answer is A.

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4 years ago

Which example best represents translation kinetic energy

Alex777 [14]

Example? I see none, so I'll make up my own.
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4 years ago

Read 2 more answers

Define a diode in semiconductor​

Define a diode in semiconductor