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3 years ago

Find the capacitance reactance of a 0.1 micro frequency capacitor 50Hz and at 200Hz

Engineering

1 answer:

Paraphin [41]3 years ago

5 0

Complete Question:

Find the capacitive reactance of a 0.1 microfarad capacitor with frequency 50Hz and at 200Hz.

Answer:

I. Capacitive reactance = 31826.86 Ohms.

II. Capacitive reactance = 7956.72 Ohms.

Explanation:

Given the following data;

Capacitance = 0.1 uF = 0.0000001 Farad

Frequency = 50 Hz and 200 Hz

To find the capacitive reactance;

Mathematically, the capacitive reactance of an electronic circuit is given by the formula;

$X_{c} = \frac {1}{2 \pi fc}$

Where;

Xc is capacitive reactance.
f is the frequency.
c is the capacitance.

Substituting into the formula, we have;

I. At frequency, f = 50 Hz

$X_{c} = \frac {1}{2 * 3.142 * 50 * 0.0000001}$

$X_{c} = \frac {1}{314.2 * 0.0000001}$

$X_{c} = \frac {1}{0.00003142}$

$X_{c} = 31826.86$

II. At frequency, f = 200 Hz

$X_{c} = \frac {1}{2 * 3.142 * 200 * 0.0000001}$

$X_{c} = \frac {1}{1256.8 * 0.0000001}$

$X_{c} = \frac {1}{0.00012568}$

$X_{c} = 7956.72$

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Answer:

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The torque on the flywheel = 300 N-m

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we know that moment = F x d

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Equating, we have

300 = F x 1

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μ is the coefficient of static friction = 0.4

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300 = 0.4 x N

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3 years ago

A well-insulated tank in a vapor power plant operates at steady state. Saturated liquid water enters at inlet 1 at a rate of 125

kompoz [17]

Answer:

a. The mass flow rate (in lbm/s) is 135lbm/s

b. The temperature (in o F) is 200.8°F

Explanation:

We assume that potential energy and kinetic energy are negligible and the control volume operates at a steady state.

Given

a. The mass flow rate (in lbm/s) is 135lbm/s

m1 = Rate at inlet 1 = 125lbm/s

m2 = Rate at inlet 2 = 10lbm/s

The mass flow rate (in lbm/s) is calculated as m1 + m2

Mass flow rate = 125lbm/s + 10lbm/s

Mass flow rate = 135lbm/s

Hence, the mass flow rate (in lbm/s) is 135lbm/s

b. To calculate the temperature.

First we need to determine the enthalpy h1 at 14.7psia

Using table A-3E (thermodynamics)

h1 = 180.15 Btu/Ibm

h2 at 14.7psia and 60°F = 28.08 Btu/Ibm

Calculating h3 using the following formula

h3 = (h1m1 + h2m2) / M3

h3 = (180.15 * 125 + 28.08 * 10)/135

h3 = 168.8855555555555

h3 = 168.89 Btu/Ibm

To get the final temperature; we make use of table A-2E of thermodynamics.

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The corresponding temperature at h3 = 168.89 is 200.8°F

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Morgarella [4.7K]

Answer:

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Explanation:

Given

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Required

Which paint does he have more?

For better understanding, it's better to convert both measurements to decimal.

For the green paint:

$Green = \frac{5}{8}$

$Green = 0.625$

For the blue paint:

$Blue = \frac{3}{6}$

$Blue = 0.5$

By comparison:

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3 years ago

A 1-kW electric resistance heater submerged in 10-kg water is turned on and kept on for 15 min. During the process, 400 kJ of he

hichkok12 [17]

Answer:

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Explanation:

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3 years ago

Find the capacitance reactance of a 0.1 micro frequency capacitor 50Hz and at 200Hz​

Find the capacitance reactance of a 0.1 micro frequency capacitor 50Hz and at 200Hz