What happens to the current when it passes through a capacitor?

Aeronautical & Aerospace Engineering : Avionics - Quiz(MCQ)

Phase of voltage leads the current

Phase of current leads the voltage

Phase of current and voltage gets added

Phase of current and voltage cancel out each other

Correct Answer : Phase of current leads the voltage

Explanation : In addition to resistance of alternating current flow, a capacitor alters the phase difference between the current and voltage. The capacitor lowers the phase of the voltage and hence the current leads the voltage.

Recently Updated in Avionics Questions

What is the peak value of 5th harmonic if the square wave has a peak voltage of 3v and a frequency of 48Khz?

0.52

0.74

0.76

1.5

Correct Answer : Option (C) : 0.76

Explanation : avionics

Which instrument produces frequency domain information?

Oscilloscope

Beam analyzer

Frequency divider

Spectrum analyzer

Correct Answer : Option (D) : Spectrum analyzer

Explanation : The test instrument for producing a frequency-domain display is the spectrum analyzer. Like the oscilloscope, the spectrum analyzer uses a cathode-ray tube for display, but the horizontal sweep axis is calibrated in hertz and the vertical axis is calibrated in volts or power units or decibels.

A pulse train has a rise time of 6 ns. What is the minimum bandwidth to pass this pulse train faithfully?

41.5MHz

42.6MHz

58.3MHz

812MHz

Correct Answer : Option (C) : 58.3MHz

Explanation :