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3 years ago

If the Zener diode is connectedwrong polarity the voltageacross the load is?

Engineering

1 answer:

o-na [289]3 years ago

6 0

Answer:

i think so

Explanation:

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Determine the complex power, apparent power, average power absorbed, reactive power, and power factor (including whether it is l

LenKa [72]

Answer:

A) complex power = apparent power = ( 108.253 + 62.5 i ) VA

active power = 108.25 watts

reactive power = 62.5 VAR'S

power factor = cos ∅ = cos 30° = 0.866 ( lagging )

also ; current lags voltage by 30°

B) your question is not well written hence no answer

Explanation:

A) v(t) = 100 cos (377t - 30° ) v

Vrms = $\frac{100}{\sqrt{2} }$ ∠ -30°

I(t) = 2.5cos(377t- 60°) A

Irms = $\frac{2.5}{\sqrt{2} }$ ∠ -60°

determine complex power apparent power . ...... power factor

Note : complex power = apparent power

=( Irms ) * Vrms

= ( $\frac{2.5}{\sqrt{2} }$ ∠ -60° ) * ( $\frac{100}{\sqrt{2} }$ ∠ -30° )

= 125 ∠ 30°

= ( 108.253 + 62.5 i ) VA ( complex power )

active power = 108.25 watts

reactive power = 62.5 VAR'S

power factor = cos ∅ = cos 30° = 0.866 ( lagging )

current lags voltage by 30°

4 0

3 years ago

A piston moves a 25kg hammerhead vertically down 1m from rest to a

UkoKoshka [18]

Answer:

Total change in energy = 31 KJ.

Explanation:

Mass m=25 kg

Height h = 1 m

Initial velocity = 0

Final velocity = 50 m/s

Energy at initial condition

$E_1=mgh+\dfrac{1}{2}mv^2$

$E_1=25\times 10\times 1+0$

$E_1=250\ J$

Energy at final condition

$E_2=0+\dfrac{1}{2}\times 25\times 50^2$

$E_2=31250\ J$

So the change in energy = 31250 -250 J

The total change in energy = 31000 J

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Gnom [1K]

Answer: since safeguarding isn't possible distance and location must be used instead

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3 years ago

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Semmy [17]

Answer:

1. Cast iron or aluminum

2. aluminum (first blank) iron(second blank)

3. aluminum

4. dry sleeve

5. Wet sleeve

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3 years ago

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algol [13]

Answer:

The Purpose of Refrigeration. The fundamental reason for having a refrigerator is to keep food cold. Cold temperatures help food stay fresh longer. The basic idea behind refrigeration is to slow down the activity of bacteria (which all food contains) so that it takes longer for the bacteria to spoil the food.

Explanation:

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If the Zener diode is connectedwrong polarity the voltageacross the load is?​

If the Zener diode is connectedwrong polarity the voltageacross the load is?