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OLEGan [10]
3 years ago
15

Ac soucre change it polarity how many time

Physics
1 answer:
Karolina [17]3 years ago
6 0
Alternating current (AC) flows half the time in one direction and half the time in the other, changing its polarity 120 times per second with 60-hertz current.
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Explanation:

It cannot be broken down into a simpler substance.

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Why are most substances denser in the solid state than in the liquid state?
Rom4ik [11]

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2 years ago
Consider a series LRC-circuit in which C-120.0 uF. When driven at a frequency w = 200.0 rad s-1 the com ples impedance is given
Lina20 [59]

Answer:

(a). (i). The reactants are X_{L} =31.66\ \Omega .

(II). The inductance of the circuit is 0.1583 Henry.

(b). The resonant angular frequency is 229.4 rad/s.

Explanation:

Given that,

Capacitor = 120.0 μC

Frequency = 200.0 rad/s

Impedance = 100.0 -10j

(I). We need to calculate the X_{C}

X_{C}=\dfrac{1}{C\times\omega}

Put the value into the formula

X_{C}=\dfrac{1}{120\times10^{-6}\times200}

X_{C}=41.66\ \Omega

(II). We know that,

Formula of impedance is

Z=\sqrt{R^2+X_{L}^2+X_{C}^2}...(I)

Given equation of impedance is

Z=(100-10j)...(II)

On Comparing of equation (I) and (II)

R = 100

X_{L}-X_{C}=-10

Now, put the value of  X_{C}

X_{L=41.66-10

X_{L}=31.66\ \Omega

We need to calculate the inductance

Using formula of inductance

X_{L}=\omega\times L

Put the value into the formula

L=\dfrac{X_{L}}{\omega}

L=\dfrac{31.66}{200}

L=0.1583\ Henry

(b). We need to calculate the resonant angular frequency

Using formula of the resonant angular frequency

angular\ frequency =\dfrac{1}{\sqrt{L\times C}}

angular\ frequency =\dfrac{1}{\sqrt{0.1583\times120\times10^{-6}}}

angular\ frequency =229.4\ rad/s

Hence, (a). (i). The reactants are X_{L} =31.66\ \Omega .

(II). The inductance of the circuit is 0.1583 Henry.

(b). The resonant angular frequency is 229.4 rad/s.

4 0
3 years ago
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