What is the total resistance of a circuit comprising two 8MFD capacitors connected in series at 60HZ?

Prepare for the NYC DOB Master Electrician Exam with tailored quiz questions. Boost your confidence by exploring comprehensive hints and explanations to excel on your electrician test.

To find the total impedance of capacitors in an AC circuit, such as the one with two 8 microfarads (MFD) capacitors connected in series at a frequency of 60 Hz, it is essential to first calculate the capacitive reactance (Xc) of each capacitor.

The formula for capacitive reactance is given by:

[ X_c = \frac{1}{2\pi f C} ]

where ( f ) is the frequency in hertz and ( C ) is the capacitance in farads.

  1. Convert microfarads to farads:
  • 8 MFD = 8 × 10^-6 F
  1. Calculate the reactance of one capacitor:

[ X_c = \frac{1}{2\pi (60) (8 × 10^{-6})} ]

  1. Plugging the values in, we calculate:

[ X_c = \frac{1}{2\pi (60) (8 \times 10^{-6})} \approx 330.4 \text{ ohms} ]

Since the capacitors are in series, the total capacitive reactance (X_total) is

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