The Bernoulli principle states that the pressure inside a liquid increases with depth:

Physics

1 answer:

Vera_Pavlovna [14]3 years ago

7 0

<h2>Answer: B. False</h2>

Explanation:

According to Bernoulli's principle:

"In an ideal fluid (not viscous and without friction) that circulates through a closed conduit, the energy the fluid possesses remains constant along its path."

From there, Bernoulli deduced that the fluid pressure decreases when the flow rate increases. And this has nothing to do with depth.

To understand it better:

In a fluid that circulates through a closed conduit (a pipe for example), it contains energy in two ways:

-Kinetic energy due to its weight and speed.

-Potential energy in the form of pressure.

Now, if the system has constant flow and the total energy (kinetic + potential) is also constant, the energy is transformed every time the transverse area of the tube is modified.

It should be noted that by modifying this transverse area, the flow rate is also modified.

Therefore, as the kinetic energy increases or decreases, this change is compensated by the decrease or increase in pressure (potential energy), since the total energy of the system cannot be created or destroyed.

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ICE Princess25 [194]

Your answer:

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5 0

2 years ago

Read 2 more answers

(a) What is the effective resistance of the diode when it was forward biased by 0.7 volts? ( Reff =V/I )

valkas [14]

Answer:

a) Effective resistance when diode was forward biased = 0 Ω

b) Effective resistance when diode was reverse biased = ∞ Ω

Explanation:

Please refer attached characteristic curve for diode.

a) As per the characteristic curve, when the diode was forward biased by 0.7 Volt theoretically infinite current was flowing across the diode.

Hence effective resistance for the diode in forward biased = $\frac{0.7}{ ∞ }$ = 0 Ω