Knowee
Questions
Features
Study Tools

Given phasor voltage Vs = 30 volts (@ zero phase)R = 16 ohmsC = 910 microfaradsFrequency, F = 100 HzCalculate the magnitude of the phasor current I in amps

Question

Given phasor voltage Vs = 30 volts (@ zero phase)R = 16 ohmsC = 910 microfaradsFrequency, F = 100 HzCalculate the magnitude of the phasor current I in amps

🧐 Not the exact question you are looking for?Go ask a question

Solution

Step 1: Convert the capacitance from microfarads to farads.

1 microfarad = 1e-6 farads So, C = 910 microfarads = 910 * 1e-6 = 0.00091 farads

Step 2: Calculate the reactance (Xc) of the capacitor using the formula:

Xc = 1 / (2 * π * F * C)

where: π = 3.14159 (approx) F = frequency = 100 Hz C = capacitance = 0.00091 farads

Substituting the values, we get:

Xc = 1 / (2 * 3.14159 * 100 * 0.00091) = 1.75 ohms (approx)

Step 3: Calculate the total impedance (Z) of the circuit. Since the resistor and capacitor are in series, the impedance is the square root of the sum of the squares of the resistance (R) and reactance (Xc).

Z = sqrt(R^2 + Xc^2)

Substituting the values, we get:

Z = sqrt(16^2 + 1.75^2) = 16.15 ohms (approx)

Step 4: Calculate the magnitude of the phasor current (I) using Ohm's law:

I = Vs / Z

where: Vs = phasor voltage = 30 volts Z = impedance = 16.15 ohms

Substituting the values, we get:

I = 30 / 16.15 = 1.86 amps (approx)

So, the magnitude of the phasor current is approximately 1.86 amps.

This problem has been solved

Similar Questions

Given Vs = 81 volts at zero phaseR = 22 ohmsL = 3.7 mHC = 0.6 microfaradsFrequency, F= 1000 HzCalculate the phase of the phasor current I in radians.Choose a value of phase between -pi and +pi

Given Vs = 78 volts at zero phaseR = 78 ohmsL = 3.8 mHC = 3.3 microfaradsFrequency, F=1000HzCalculate the magnitude of the phasor voltage,  VL in volts.

Given Vs = 23 voltsR = 12 ohmsL = 4.2 mHC = 1.1 microfaradsFrequency, F = 1000HzCalculate the phase of the phasor current I in radians.Choose a value of phase which is between -pi and +pi.

Given Vs = 79 voltsR = 13 ohmsL = 2.1 mHC = 1.3 microfaradsFrequency, F= 1000HzCalculate the magnitude of the phasor voltage, Vc, in volts.

Given Vs = 43 voltsR = 34 ohmsL = 4.9 mHC = 2.5 microfaradsand frequency  F = 1000HzCalculate the magnitude of the phasor current  I.

1/2

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.