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3 years ago

What’s a pnp transitor?

Engineering

2 answers:

Dafna1 [17]3 years ago

7 0

Answer:

A transistor is of two types: PNP and NPN

Explanation:

A transistor is current controlled device in which the current flow by the movement of the electrons and wholes.

The NPN and PNP transistor are the types of the BJT (Bipolar junction transistor) that have two uses i.e switching and amplification.

A PNP transistor have three junction i.e P, N and P where the base is connected to the N - junction. The P junction is high in number of wholes and N- junction have high numbers of electrons.

In the PNP transistor the voltage is provided to the emitter and base terminal with base connected to the negative terminal of the voltage source and emitter connected to its positive terminal. The direction of the flow of the current is from emitter to collector whenever a significant voltage is provided to the emitter base junction.

Damm [24]3 years ago

6 0

Answer:

PnP transistor is a current controlled device. It has two crystal diodes connected back to back. The left side of the diode is known as the emitter-base diode and the other side which is the right side of the diode is known as the collector-base diode.

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Concepto gestión del tiempo?

Arturiano [62]

Answer:

time management concept

Explanation:

it says time management concept.

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3 years ago

The force exerted on a vane due to a jet of water is only a function of the mass flowrate and independent of the jet velocity. a

hoa [83]

Answer:

b) false

Explanation:

We know that rate of change of momentum is called force.

Force = rate of change of momentum

$F=\dfrac{dP}{dt}$

We know that

P = m v

$\dfrac{dP}{dt}=\dfrac{dm}{dt}V$ (take velocity in constant and not changing with time)

$F=\dfrac{dm}{dt}V$

So $F=\dot{m}V$

So force exerted by jet depends on mass flow rate and velocity also.So our option b is right.

5 0

3 years ago

I need this asap thank you :) plzzzzz When the spring on a mousetrap car is fully unwound, the force acting on the car is _____.

Usimov [2.4K]

Answer: (only friction) the friction lets it keep its speed and not slow down and it creats volocity between the serface of where the mousecar is running and the wheels on the ground

sorry if im wrong i tried my best

6 0

3 years ago

garik1379 [7]

Answer:

The answer is below

Explanation:

$R_{AB}=(500+500)||(500+500)\\\\R_{AB}=1000||1000\\\\R_{AB}=\frac{1000*1000}{1000+1000} \\\\R_{AB}=500\ \Omega$

$R_{AB}=1000\|(1000+1000+1000)\\\\R_{AB}=1000||3000\\\\R_{AB}=\frac{1000*3000}{1000+3000} \\\\R_{AB}=750\ \Omega$

Because of the short, the resistance is zero.

$R_{AB}=0$

$R_{AB}=940\ \Omega$

$R_{AB}=2200||2200||(2200+2200)\\\\R_{AB}=2200||2200||4400\\\\\frac{1}{R_{AB}}=\frac{1}{2200} +\frac{1}{2200} +\frac{1}{4400} \\\\\frac{1}{R_{AB}}=\frac{5}{4400}\\\\R_{AB}=880$

$R_{AB}=(220+100)||470||330\\\\R_{AB}=320||470||330\\\\\frac{1}{R_{AB}}=\frac{1}{320} +\frac{1}{470} +\frac{1}{330} \\\\R_{AB}=120.7\ \Omega$

5 0

3 years ago

When current flows through an electrical component due to a potential difference,

ira [324]

Answer:

Ohm, a german physicist, found experimentally that the current in a metal conductor is directly proportional to the potential difference across its ends

Explanation:

8 0

3 years ago