E5B01

What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the supply voltage?

  1. One time constant

E5B02

What is the term for the time it takes for a charged capacitor in an RC circuit to discharge to 36.8% of its initial value of stored charge?

  1. One time constant

E5B03

The capacitor in an RC circuit is discharged to what percentage of the starting voltage after two time constants?

  1. 13.5%

E5B04

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

  1. 220 seconds

E5B05

How long does it take for an initial charge of 20 V DC to decrease to 7.36 V DC in a 0.01-microfarad capacitor when a 2-megohm resistor is connected across it?

  1. 0.02 seconds

E5B06

How long does it take for an initial charge of 800 V DC to decrease to 294 V DC in a 450-microfarad capacitor when a 1-megohm resistor is connected across it?

  1. 450 seconds

E5B07

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

  1. 14.0 degrees with the voltage lagging the current

E5B08

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

  1. 14 degrees with the voltage lagging the current

E5B09

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

  1. Current leads voltage by 90 degrees

E5B10

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

  1. Voltage leads current by 90 degrees

E5B11

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 50 ohms?

  1. 14 degrees with the voltage leading the current

E5B12

What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 75 ohms, R is 100 ohms, and XL is 50 ohms?

  1. 14 degrees with the voltage lagging the current

E5B13

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

  1. 14.04 degrees with the voltage leading the current

 

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