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4 years ago

Which of the following accurately describes semiconductor diodes?

Physics

2 answers:

d1i1m1o1n [39]4 years ago

7 0

C is the answer if not I’m sorry but I came to the conclusion of C being the answer

Fofino [41]4 years ago

3 0

Answer:

The answer is A. Because it describes better a semiconductor diode

Explanation:

A semiconductor diode is formed of a junction of P dopped material (excess of electrons), with a N dopped material (absence of electrons). Under the correct polarization, the electron flows from one side to another, other way electrons wont flow.

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Earthquakes produce p waves, which are longitudinal waves that travel underground. how do these waves move through the soil and

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3 years ago

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g determine what frequency is required of a source powering a 100 uf capacitor a 500 ohm resistor and a s50 mH inductor in serie

polet [3.4K]

Answer: $71.16\ Hz$

Explanation:

Given

Capacitance $C=100\ \mu F$

Resistance $R=500\ \Omega$

Inductance $L=50\ mH$

In LCR circuit, current is maximum at resonance frequency i.e.

$X_L=X_C\ \text{and}\ \omega_o=\dfrac{1}{\sqrt{LC}}$

Insert the values

$\Rightarrow \omega_o=\dfrac{1}{\sqrt{50\times 10^{-3}\times 100\times 10^{-6}}}\\\\\Rightarrow \omega_o=\dfrac{1}{\sqrt{5}\times 10^{-3}}\\\\\Rightarrow \omega_o=0.447\times 10^{3}$

Also, frequency is given by

$\Rightarrow 2\pi f=\omega_o\\\\\Rightarrow f=\frac{\omega_o}{2\pi}$

$\Rightarrow f=\dfrac{1}{2\pi}\times 0.447\times 10^3\\\\\Rightarrow f=71.16\ Hz$

8 0

3 years ago

What is the correct water depth for an echo travel time of 6 seconds? (for the purposes of this exercise, assume pressure and te

saul85 [17]

In physics, there are empirical values for common important parameters. For example, the speed of sound is equal to 340 meters per second. Unlike the speed of light, the speed of sound is dependent on temperature and pressure. But in standard room conditions, the speed is 340 m/s. Using this value of speed, we can find the depth given the time. You should also note that the distance the echo travels is exactly the same distance that object travelled. Therefore,

Distance = 340 m/s * 6 seconds
Distance = 2,040 meters deep

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4 years ago

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4 years ago

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A brick is 32cm long and 10cm wide. It weighs 16N and is lying on the ground. Find the pressure exerted by the brick on the grou

Vaselesa [24]

Answer:

Below

Explanation:

First, we need to convert the dimension from cm to m before plugging it into the equation:

32 / 100 = 0.32 m

10 / 100 = 0.1 m

You can use this equation to find the pressure exerted on the ground

Pressure = Force / Area

Plugging our values in.....

Pressure = 16 Newtons / (0.1)(0.32)

= 16 Newtons / 0.032

= 500 N/m^2

Hope this helps! Best of luck <3

4 0

3 years ago