What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the applied voltage or to discharge to 36.8% of its initial voltage?

1. A An exponential rate of one
2. B One time constant
3. C One exponential period
4. D A time factor of one

What letter is commonly used to represent susceptance?

1. A G
2. B X
3. C Y
4. D B

How is impedance in polar form converted to an equivalent admittance?

1. A Take the reciprocal of the angle and change the sign of the magnitude
2. B Take the reciprocal of the magnitude and change the sign of the angle
3. C Take the square root of the magnitude and add 180 degrees to the angle
4. D Square the magnitude and subtract 90 degrees from the angle

What is the time constant of a circuit having two 220-microfarad capacitors and two 1-megohm resistors, all in parallel?

1. A 55 seconds
2. B 110 seconds
3. C 440 seconds
4. D 220 seconds

What is the effect on the magnitude of pure reactance when it is converted to susceptance?

1. A It is unchanged
2. B The sign is reversed
3. C It is shifted by 90 degrees
4. D It is replaced by its reciprocal

What is susceptance?

1. A The magnetic impedance of a circuit
2. B The ratio of magnetic field to electric field
3. C The imaginary part of admittance
4. D A measure of the efficiency of a transformer

What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 500 ohms, R is 1 kilohm, and XL is 250 ohms?

1. A 68.2 degrees with the voltage leading the current
2. B 14.0 degrees with the voltage leading the current
3. C 14.0 degrees with the voltage lagging the current
4. D 68.2 degrees with the voltage lagging the current

What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 300 ohms, R is 100 ohms, and XL is 100 ohms?

1. A 63 degrees with the voltage lagging the current
2. B 63 degrees with the voltage leading the current
3. C 27 degrees with the voltage leading the current
4. D 27 degrees with the voltage lagging the current

What is the relationship between the AC current through a capacitor and the voltage across a capacitor?

1. A Voltage and current are in phase
2. B Voltage and current are 180 degrees out of phase
3. C Voltage leads current by 90 degrees
4. D Current leads voltage by 90 degrees

What is the relationship between the AC current through an inductor and the voltage across an inductor?

1. A Voltage leads current by 90 degrees
2. B Current leads voltage by 90 degrees
3. C Voltage and current are 180 degrees out of phase
4. D Voltage and current are in phase

What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 25 ohms, R is 100 ohms, and XL is 75 ohms?

1. A 27 degrees with the voltage lagging the current
2. B 27 degrees with the voltage leading the current
3. C 63 degrees with the voltage lagging the current
4. D 63 degrees with the voltage leading the current

What is admittance?

1. A The inverse of impedance
2. B The term for the gain of a field effect transistor
3. C The inverse of reactance
4. D The term for the on-impedance of a field effect transistor